I'd be happy with him being at the club as long as he wasn't trying to become too involved in game plan development. Sure, he will provide a few fresh ideas that may complement what is already in place, but his gameplan for Adelaide proved a flawed when it came to playing finals football. A good mate who supports the Crows had been complaining for several years prior to this that the Crows would go nowhere with Craig at the helm. He was totally inflexible - there was no plan B.
Dimma is still an unknown quantity on game day - slow to react, or deliberately delaying moves in order to see how the boys cope when the pressure is on?
They guy is brilliant at producing fine athletes and being a good people person. For these reasons he would prove invaluable to Richmond should they go down that path (although Matt Hornsby may become a little uncomfortable...). He also has lots of experience which Dimma and the assistant coaches could absorb.