I need a favor from you guys.

So I'm working on a fanpost in which Cassel's performance against the Chargers plays a central role. Unfortunately, unlike when I usually post, I'm not very sure I'm right. The issue is that when I look at that game, I can't see anything but an average performance by Cassel, but I am seemingly the only person who thinks that. I'm used to having, how should I put this, "unique" opinions that many people don't share, but I usually have at least a couple people backing me up. And while the lone voice occasionally proves the masses wrong, more often than not the masses are right. That's why they're the masses.

So I wanted to double check that I have everything right before I put it up as fact. What arguments are there for saying Cassel had a bad game against the Chargers? The only two I've heard are that he had a bad first half and the interception to end the game. I don't find these arguments convincing, and if that's the extent of the disagreement I can confidently post it (I address both of these there). However, if I'm missing something, some crucial piece of evidence that proves Cassel did a terrible job, I would really like to hear it.

In short, besides a bad first half and the interception, is there any other reason that makes you believe Cassel had a bad game last Sunday?