Last month, I touched on the impact of changing key personnel on a commissioning team. This month, I thought I would explore exactly who the key personnel are. As with any team, a commissioning team’s effectiveness depends on the performance of individual team members. Even with a strong commissioning team leader and a well-defined commissioning process, the team’s success will still be proportional to the level of engagement of each member of the team. The most influential team members (outside of the commissioning professional leading the team) are as follows.