William Bridges describes three stages of transition:
• Endings,
• The neutral zone (explorations), and
• New beginnings.
The change is external (the different policy, practice,
or structure that the leader is trying to bring about),
while transition is internal (a psychological
reorientation that people have to go through before the
change can work). The trouble is, most leaders imagine
that transition is automatic -- that it occurs simply
because the change is happening. But it doesn't. pdf