Research has shown that 75% of people who voluntarily left their role did so for reasons their line manager could directly influence.
Put simply: people don’t leave companies, they leave line managers. Are your line managers a priority in your development strategy? Are you equipping them to retain your talent?
Our 2025 Line Manager Toolkit uses science and human-centred principles to explore how best to level up your line managers to be higher-performing, at a time when a new approach to leadership is sorely needed for organisations to thrive.

Actionable methods to better support your line managers, including soft skill development, fostering psychological safety, and mapping development journeys
Tried-and-tested high-impact Line Manager growth and development solutions
Supporting case studies from our line management development projects with pioneering global brands
Our 2026 GenAI Mindset Toolkit explores clear, evidence-based approaches for enabling sustainable consistent AI habits and responsible, effective use across your organisation.
Read moreCatch up with TST’s Chief Innovation Officer Dr. Khairunnisa Mohamedali for a deep-dive session into the newly-released 2026 Early Careers Trends Report
Read moreNew findings show that the strongest predictor of long-term retention is not salary or training budget alone, but the extent to which organisations make their Early Careers hires feel supported, recognised, and part of something bigger.
Read moreWhile many organisations focus on pay, progression, or programme design as key retention levers, new ECO data suggests that one of the most powerful predictors of retention could happen much earlier in the employee lifecycle than expected.
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