I agree somewhat, but you have to look at the big picture. IF Jack had not left Commodore, the Amiga would have gone to Atari. At that time, Atari was bleed money for Time-Warner, so even if they managed to get the 150XE out the door (I think that was the offical name for MICKEY), Atari soon would have folded up after that. POSSIBLY, Jack would have swooped in and bought it up, if he could have gotten it for JACK's terms, but, then the damage would have been done, and possibly, the Amiga technology would have died, or have been used in other ways. Now, CBM on the other hand (If Jack had stayed) would have bought Zlog, and have pushed the C900 out the door for a UNIX machine. It's really hard to say if the C900 would have carried Commodore into the '90's, but the big problem was Jack's lack of the future. He wanted Immediate results, and if it was selling good, then it will keep on selling. As a result, Commodore and MOS had no 16 bit processor (because it wasn't a priority of Jack's) and of course no 32 bit processor in the pipe.
Another huge mistake (once Jack left) was to kill the Commodore LCD computer, and sell off Commodore's LCD manufacturing plant (The ONLY LCD plant in America)