A few thoughts - Guy Boucher coached the Senators as far as any coach not named Bryan Murray. Further than Jacques Martin. And I hold no grudges this year. The young talent is playing, and he's been given no depth whatsoever. For that, he is nowhere near the worst. Closer to the top of the list, in fact. The one issue I have is that he had Karlsson blocking as many shots as he did. That was not wise.
Hartsburg and Clouston rank low as they had talent to work with and disappointed.
Paddock overplayed a top heavy roster and ran them into the ground. Granted, depth had been eroded by 2008, but he was over dependent on the Pizza line to his detriment.
Paul MacLean had his issues, but he did win a playoff series. He also scratched Chris Phillips the game after he broke Alfie's franchise GP mark. The Hamburgler run literally started the very next game. Phillips was a total anchor that year, and having the stones to make a tough roster call like that saved the season.
My list:
Bryan Murray
Jacques Martin
Guy Boucher
Paul Maclean
Cory Clouston
John Paddock
Dave Cameron
Craig Hartsburg