My best experience:

• crisis management on quality of life on 12 healthcare locations. I was the projectmanager and had an amazing counterpart that was a location manager of a very intense group (that was known as an example how to deal with this audience). Together we had amazing synergy and that spread over to the project team and to the target locations.

• Worse experience - last year same employer. BOD tried to frame a top down efficiency project as a bottom up movement. Due to the complexity they assigned 4 senior project managers to this project - but gave the lead to an unexperienced junior process facilitator from within our team. Both to provide her the learning opportunity aswell as a way to overcome critical feedback that a senior change manager would had provided.
  We as seniors where stuck between our loyalty towards our collegue and seeing that this approach would not work. Our intentions to help her, resulted in giving her the feeling that we would wanted to overrule her with our experience rather than supporting her. Her ambition prevented her from demanding the decisions required to improve the assignment or voice any of the concerns to BOD. Eventually it was such an energy drain , where I was not able to see any room to contribute I decided to give back my assignment.