How do we know if team development is actually working?

Team development budgets are under more scrutiny than ever. If you are asked whether last year’s programme made a difference, “people said they enjoyed it” won’t get you very far. The good news is that measuring impact doesn’t need to be complicated. It just needs to be planned before the day, not after.

Why feedback forms aren’t enough

End-of-day feedback tells you whether people were engaged and whether the event was well run. Both matter, but they don’t tell you whether anyone behaves differently a month later. For that you need to look again, later, and at more than one level.

Three levels of change

• The individual: do people understand their own working style and how it affects others? Are they trying new approaches?
• The team: is communication clearer? Are decisions faster? Are the same conflicts still coming up?
• The organisation: over time, does it show up in engagement, absence, retention or, in education, student outcomes?

Four moments to collect evidence

1. On the day: what people say in the debrief, and what facilitators observe.
2. At the end of the event: short individual reflections, while it is still fresh.
3. Weeks later: a follow-up survey or conversation about what has changed.
4. Months later: organisational data you already collect, such as engagement surveys.

What this looks like in practice

After a Teams Glued event with 50 managers at Core Logic, a follow-up survey found that 80% had a positive impression of the event, 60% felt it would lead them to reflect on their behaviour at work and 53% said they had been able to trial alternative ways of responding. Those last two numbers are the interesting ones, because they are about behaviour, not enjoyment.

What to try

1. Set a baseline. Ask two or three simple questions before the programme so you have something to compare against.
2. Pick one behaviour per level. For example: individuals asking for input, teams making decisions in one meeting, fewer escalated conflicts.
3. Put the follow-up in the diary now. Six to eight weeks is a good point for a team check-in.
4. Use data you already have. Engagement, absence and retention figures are often the most convincing evidence over time.