Bevell would probably ask "what's a mismatch?"
Pete would probably respond with "well, that's just unsportsmanlike".
Seriously, Pete ran the score up at USC all the time, but in the NFL, we get up by 10 and it's run, run, run, punt. For a quarter and a half. Hell, 14 points isn't safe in the NFL anymore.
I will say in all honestly that we picked on that rookie CB from Miami last weekend. For like the first series or so, then ol' softy Pete felt sorry for the kid. (i'm kidding and I do like Pete. I think he's going to be the best coach we've ever had).
Seriously though, it begs another question: why do we always find something that works, then promptly go away from it ?
We start out with the quick passing game, then just quit. I know it wasn't super effective, but it did move the chains. We have the personnel to go power run game one play, then spread them out the next. Change identities play to play and game to game.You know, like the Patriots do.
We're shutting Miami down with bringing pressure. So we promptly go to a 3 man pass rush, and drop JARRAN REED into coverage. This is seriously like saying "look, we're going to give you 6 seconds or so to throw. and trot a guy off the field for good measure". Then we get this 30 yard catch and run, so gee, we go back to what works.
I'm with the OP. Why don't we ever seem to game plan for weaknesses? It works for the Pats. They will go spread against a team with a weak secondary (like Minny 5 years ago with the Williams Wall and no CBs) and then go power run against a team like the Colts that can't stop the run. And they're just not scared to beat people. They don't care if they beat you by 30.