Because nothing says "good management" like making everyone think it's their idea.
1. The "I'm-just-trying-to-help" approach: Presenting your own agenda as a benevolent suggestion.
2. The "you're-being-paranoid" approach: Making your employees question their own sanity.
3. The "it's-a-team-building-exercise" approach: Forcing people to do your dirty work under the guise of team-building activities.
See also:
Mind Games