the change team spent a great deal of time thinking about changes. It is only natural that it should take the affected people just as much, if not more, time to reach the level of understanding the change team have about the change.
This certainly seems true for the types of change that requires a gradual discovery and exploration of new terrain. Other types of change, however, are revelatory in nature. Agile and Lean approaches aim to make workplace more open, more humane, and more efficient by removing obstacles, and allowing teams to self-organize naturally. Thus, coworkers would hardly need training to participate in Lean Coffee, or to use merit money — we all already know how to act naturally.
Change teams spend lots of time designing ways to introduce change, this same type of thinking is not required on the part of the affected people.