He has played very well so far in my opinion.
He has been under pressure all year, and has stood in there. Cassle has also proven he can take a hit, and get right back up.
It seems like the 4 or 5 times a game he actually has time to look over the field, he is accurate, and makes the most of it.
Get the o-line shored up in the draft and free agency this offseason, and I think we are set at qb for several years.