June 13, 2026 · Professional Development · 9 min read
Leadership development is often presented as a straightforward employee-retention tool: train managers, engagement rises, and turnover falls. The evidence is more nuanced.
Current research strongly supports the importance of managers to the employee experience, and there is good evidence that well-designed leadership training can improve learning, behaviour transfer and organisational results. Career development and learning opportunities are also widely used by employers as retention strategies. But those findings do not mean every leadership programme will reduce turnover, or that a single universal retention percentage can be applied across organisations.
This 2026 evidence review separates what is well supported from what is often overstated, and shows how organisations can measure whether leadership development is actually affecting retention in their own workforce.
Gallup’s current employee-engagement guidance states that managers account for 70% of the variance in team-level engagement. Gallup also identifies development, caring managers, ongoing conversations and clarity among the factors that shape engagement.
That matters for retention because Gallup’s large workplace database shows that highly engaged teams experience lower turnover than less engaged teams. Gallup reports median turnover differences of 21% for high-turnover organisations and 51% for low-turnover organisations when comparing the most engaged teams with the least engaged teams.
Those figures should be interpreted carefully. They describe differences associated with engagement across Gallup’s database. They do not prove that leadership training alone caused the turnover difference. Pay, workload, labour-market conditions, career opportunities, job design and organisational culture can all affect whether employees stay.
Source: Gallup, Employee Engagement
LinkedIn Learning’s 2025 Workplace Learning Report surveyed 937 learning and HR professionals with influence over learning budgets and 679 learners. It found that 88% of organisations were concerned about employee retention, and respondents ranked providing learning opportunities as their number-one retention strategy.
The same report found that leadership training was the most common career-development practice among the organisations it classified as career-development champions, with 71% offering it. It also reported that 84% of employees agreed that learning adds purpose to their work.
Again, these are useful signals rather than proof of a simple causal formula. Organisations that invest seriously in career development may also have stronger internal mobility, better managers, clearer career paths and other characteristics that influence retention.
Source: LinkedIn Learning, 2025 Workplace Learning Report
A major meta-analysis published in the Journal of Applied Psychology examined 335 independent samples of leadership-training interventions. The researchers found positive effects across participant reactions, learning, transfer to the workplace and results.
Importantly, the meta-analysis also showed that programme design matters. More effective interventions were associated with needs analysis, feedback, multiple delivery methods, opportunities to practise, spaced sessions and other design choices. This supports a practical conclusion: the question is not simply whether an organisation “offers leadership training”, but whether the programme is designed so participants can learn, practise, receive feedback and apply new behaviours in real work.
The meta-analysis did not establish a universal employee-retention effect. It supports the effectiveness of leadership development across several outcome categories, but retention should be measured directly if it is an organisational objective.
Source: Lacerenza et al., Leadership training design, delivery, and implementation: A meta-analysis
Several popular claims about leadership and retention are repeated so often that they can sound like established facts. Organisations should be more cautious.
This is a useful reminder that the direct manager can shape daily work, but it is too absolute to use as a research conclusion. Employees also leave because of compensation, workload, career ceilings, organisational instability, location, family circumstances, poor job fit, restructuring and external opportunities.
A better evidence-based statement is that manager quality is an important part of the employee experience and a major contributor to engagement, which is itself associated with retention outcomes.
Turnover-cost estimates vary substantially depending on the role, hiring market, time to productivity, recruitment method, lost knowledge and whether the vacancy affects revenue or service delivery. Applying one universal figure such as “six to twelve months of salary” to every mid-level employee can create false precision.
Organisations should calculate their own replacement costs from recruitment spend, vacancy time, onboarding, training, manager time, productivity ramp-up and any role-specific disruption.
Leadership development can be effective, but the business outcome depends on what problem the programme is meant to solve and whether the organisational environment allows managers to apply what they learn. Training cannot compensate for chronically uncompetitive pay, impossible workloads, unclear strategy or systems that punish the behaviours the programme is trying to build.
Retention therefore should be treated as an outcome to test, not a promise to assume.
Managers influence many of the experiences that determine whether work feels sustainable and worthwhile. They clarify priorities, allocate work, give feedback, recognise contributions, support development, manage conflict and create the conditions in which employees can raise problems.
When a leadership programme improves those behaviours, it creates a plausible pathway to stronger engagement and, potentially, lower unwanted turnover. The pathway looks more like this:
This is more defensible than claiming that a two-day course directly “reduces turnover”. It also gives HR and L&D teams a better measurement model.
The evidence on training design suggests several practical features.
Do not build a programme around generic leadership topics simply because they are familiar. Identify the behaviours causing operational or people problems. For one organisation the priority may be delegation and expectation setting; for another it may be feedback, difficult conversations, cross-cultural communication or decision quality.
Leadership is behavioural. Participants need opportunities to rehearse difficult conversations, coaching, delegation, feedback and decision-making, then receive feedback on how they performed. Slides and lectures can introduce a model, but practice is what turns the model into a usable skill.
The leadership-training meta-analysis found evidence supporting spaced training sessions. A programme delivered across multiple touchpoints also creates opportunities to apply a behaviour at work, return with evidence or difficulties, and refine the approach.
Leadership development should be relevant to the participants’ responsibilities, workforce and operating environment. For organisations across the GCC, Africa and Asia, that can include managing multicultural teams, developing early-career managers, navigating rapid workforce change and leading across different organisational and cultural expectations.
These contextual differences should shape scenarios and practice. They should not be used to make unsupported claims that one culture automatically produces a larger training effect than another.
Follow-up does not need to mean an expensive coaching programme for every participant. It can include manager check-ins, peer practice groups, structured reflection, application assignments, observation, 360-degree feedback or short reinforcement sessions.
If retention is one of the reasons for investing in manager development, it should be measured directly rather than inferred from attendance.
Specify which managers are participating and which employees report to them. Separate voluntary and involuntary turnover, and identify which departures the organisation considers regrettable.
Capture at least several months of pre-programme data where possible. Useful measures include voluntary attrition, regrettable attrition, engagement, internal mobility, absence, manager-effectiveness scores and common exit reasons.
A positive end-of-course survey tells you that participants liked the programme. It does not show whether they changed how they manage. Add measures such as employee feedback, observation, 360-degree data, quality of one-to-one conversations or documented application of specific leadership behaviours.
Retention effects may take months to appear. Compare manager cohorts before and after the intervention, and where possible compare with similar teams that did not receive the intervention at the same time.
If a business unit receives a pay increase, restructures, changes shift patterns or experiences a major hiring surge during the same period, those changes can affect retention. Record them rather than attributing every movement to training.
Turnover rates can tell you whether people left. Stay interviews, exit interviews and employee feedback can help explain why. A useful evaluation asks whether manager behaviour appears in those explanations and whether that pattern changes after development.
The aim is not to prove that leadership training caused every positive change. It is to build a credible body of evidence showing whether manager behaviour improved and whether retention-related outcomes moved in the expected direction.
Leadership development can be an important part of a retention strategy, but it should not be sold internally as a guaranteed turnover-reduction mechanism.
The strongest current evidence supports three more precise conclusions: managers are central to employee engagement; organisations widely use learning and career development as retention strategies; and well-designed leadership training can improve learning, behaviour transfer and organisational results.
For HR and L&D leaders, the practical task is to connect those findings. Identify the manager behaviours that matter in your organisation, design development around those behaviours, reinforce application, and measure retention alongside the other factors that influence whether people stay.
MATSH’s Leadership Fundamentals for Young Leaders course focuses on practical manager capability for professionals taking on greater leadership responsibility. Organisations considering leadership development for retention should pair training with internal measurement of manager behaviour, engagement and voluntary turnover rather than relying on generic ROI assumptions.
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