If your point were true, and no head coach had time to mess with the game plan, then there wouldn't be any head coaches that called their own plays.
I think a lot of us Panther fans wanted to believe the Fox hype after 2003. The media was making him out to be some kind of genius. Anyway, that's my theory for why people have had trouble holding him accountable ever since then.
Sometimes its good to read before you post cause I said that he could be involved with calling plays but there would be no reason to have coordinators if he made the gameplan himself. Even the most controlling of coaches have coordinators to come up with gameplans.
Davidson's "plan" didn't work too well when Jake was hurt. Davidson has the luxury of having the best running game in the league. If we still had Foster, we wouldn't have done as well. Of course Fox is going to go with the run. It's his philosophy. Both Trgo and Davidson are great coaches...but one is not working with Fox the right way and it's both of their faults.
Your right his plan didn't work last season when Jake when down and never could have been that we had 4 different QBs starting that year. I also guess it just so happened that we had one hell of a line this year also. Not that Davidson was a O-line coach or anything.