This feeling is shown to great effect in "The comeback" episode of Seinfeld.
I almost always have those kinds of revolutions after coaching gigs. Sometimes during the gig which is helpful because I then can change into something better. Sadly sometimes after the gig which just frustrates me since there's not much to do at that point.
The story I'm about to tell you is of such an episode. It's from my, by far, biggest agile (brrrr...) roll-out task. To me it all ended in a big meeeh, but I know that some people there was happier when i left and I supposed that meant something.