Here is a little graph that might help.

60% of his yards came AFTER we were down by 34. This would be fine if we were down 34 at half, but we weren't, this was within a minute of the fourth quarter (Again, don't pay attention to the x-axis, it doesn't indicate time; it's meaningless.).
The majority of his yards came at the end of the game when we were down huge
How often does this happen?
I could only get play-by-play to 6 games: Baylor, OU, KSU, Miami, Army, and Colorado, which is an okay sample. Some wins, some losses, some blowouts. But considering these games...
40% of JJ's passing yards came when were were down 21. I am not sure what to do with this metric. I know our defense stinks, and it's quite possible we are almost always down by three TDs, so I need to look into something better, but that number is hard to ignore.
What about big plays? Half of JJ's 20+ yard plays came when we were down by at least two TDs. 38% came when we were down at least 21.
An really big plays? JJ has had 5 +50 yard plays. We were down by 21 in two, 13 in one, and tied the the other two.
In the interest of full disclosure, we are almost always loosing. In fact, only 16% of JJ's pass attempts came when we weren't loosing. I am not blaming him for all of this, I am just pointing out when he gets his stats.