On Marinelli, I don't know how much is his coaching and how much is players failing. Before the game he said the key to stopping the Packers was containing Rodgers. He was/is right. Most of Rodgers big plays come after he moves out of the pocket. My question for him would be, "if you knew you had to do that, what was the plan to keep him in the pocket?"
I think there are several flaws with his defensive mind-set. I think it is extremely vulnerable to a mobile quarterback. If your "rushmen" just rush up the field to get to the QB, it leaves gaps the QB can exploit to get out on the edge where he can see the field clearly and run or pass, whichever gives the best result. It seems like the DL guys are just free-lancing to get sacks instead of working as a unit. Sacks are important, but so is gap responsibility and this is the ultimate team sport.
I also, as I have said before, do not like the frequency of DL substitutions. I know the concept is to keep them fresh, but I don't think freshness is not as important as rhythm and cohesion. Notice that OL do not substitute frequently to "keep them fresh."