(PS - this post is a snark-free zone!)
We beat two teams that don't suck (after all the Jets just beat the *s), we've shown some creativity (Wildcat, anyone?), there seems to be some discipline on the team that was lacking before, and individual performances are getting better and better (ref: Ben). Additionally to that, we seem to be one of the least penalized teams in the league.
My feeling is that it was mainly lack of personnel - no Heath, no Bell, no Pouncey, who else am I missing - even if Noll/Lombardi/Landry were coaching we would have been hosed. But now with folks coming back ...
But for you guys that thought it was mainly coaching and wanted Tomlin/Haley/Bicknell/LeBeau fired ... are you feeling more optimistic?