Teams like The Raiders and Browns typically over react and fire coaches and get stuck at the bottom for basically ever. Fisher has built a pretty solid roster and has this draft and year to finally put it all together. Do you remember the post Martz and pre Fisher days? Linehan, Haslett, Spags...
Now those were pretty good coaches that were considered up and comers...none have put even a half way decent product on the field, and probably won't get another chance at head coaching unless it's as interim.
Fisher, while typically has been average, has at least been to the big game, and been to the playoffs. This is the first time where he has total control of the team. Nobody is going to be forcing Vince Youngs on him. He came in with a plan, put it into motion, let's let him finish out his contract and EARN a new one. Players play hard for him. They commit to him. Look at Albert Haynesworth with Fisher and without. Look at how our stars have said they want to come back. Our leaders are willing to take pay cuts under him, which couldn't really be said in the past.
Plus, in Stan is comfortable keeping him around, what do you think would happen if he replaced him with someone who is not up to task? Stan stays out of the operation side of the team. We could do a lot worse than Jeff Fisher.