Fisher is also the de facto GM and as such he let Jackson, Amendola and Gibson go among others. He also made the decision to stick with a shaky over-rated QB (whether he stayed heallthy or not) so when you consider Fisher, it must be in a bigger context. Personally, I didn't want someone who would still have been slogging along in TN if not fired...at that point putting up 6 whole winning seasons out of 16 and 6 games (now it's 18+6 games) with a couple of mountains mixed in there, true, but too many valleys and flatlands to be anything other than a career mediocre HC. So he made his own bed, I sure wouldn't want him as my real GM and with nearly 20 years in, there's no empirical reasons to project that his pattern of mediocrity will ever change. So regardless of whether he's done a slightly worse job than Philbin (my estimation considering the OL and distractions Philbin had to work with) or marginally better, it's moot cuz we hired the HC with more potential upside. Of course, with a better, less turbulent OL and almost anyone other than Sherman calling the plays, this question would actually have been a no-brainer.
Aside from that he's sort of the HC reptile equi8valent of Martin - having played Ross in collusion with the Rams' presidents Dad, Marvin Demoff to also get to play Kroenke cuz that grifter move was what it was all about. So if he were here, I'd trust him about as far as I could throw him.