Tuckman's Model of Team Development
Model of team development and behaviour advanced by Dr. Bruce Tuckman in 1965 to which he later added a fifth stage of Adjourning in the 1970s. The model explains that as the team matures through these stages, the leadership style of the project manager will, and indeed must, also change. Beginning with a directing style, moving through coaching, then participating, and finishing the project delegating and almost detached. At this point the team may produce a successor leader and the previous leader can move on to develop a new team.
The progression is: