Sure, but there are also simple generalizations that are completely valid. For example, if the other team is constantly blitzing and the coordinator keeps calling long developing plays, it's pretty obvious what the problem is.
Of course the rebuttal is that if you can't drive the ball downfield then they sit on the short stuff and you can't do that either. Here are some examples that I was just looking at earlier. At least for these plays I think personnel execution was the glaring issue over the play call.
4:04 1st - 2nd & 11 at SEA 46
Parkinson does run a quick out and appears open. Geno bounces a pass to Lockett instead and Romo thinks it was miscommunication. It could also have to do with Peters getting bull rushed back into Geno, and Geno not being able to step into the throw and deliver it with power. That leads to the difficult third down on the following play...
4:01 1st - 3rd & 11 at SEA 46
The play where their five rushers demolished our seven protectors. With the benefit of hindsight, I would rather see Charb chip and release into the flat here rather than counting on the protection holding up. Hard not to ultimately blame the OL here though.
12:11 2nd - 3rd & 4 at SEA 32
Protection holds up here and I have zero idea what Lockett and Geno were doing on this one. Throw is way over Lockett's head right to the DB and intercepted. Probably just a terrible throw from Geno but Lockett looked a bit confused pre-snap.
9:55 2nd - 2nd & 8 at SEA 39
Really ugly sack with them rushing four and us protecting six (Walker kept in to protect). Walker seems like the issue here, as he tries to chip inside?! but really just sets a pick on our own LG and then releases out to the left after Geno is sacked. My reaction is this may be the worst pass blocking rep I've seen this season from any player. Geno probably could have thrown it away before getting sacked?
I'm not sure the second half had any examples worth looking at given the game situation and the blow out score. There was a third & 15 one drive, third & 16 the next drive, really nothing that you would expect to convert a reasonable amount of the time against a strong defense.