I've always liked Kitna though I don't know if this is the best move of FA so far.
But, I really liked the trade and now we got a good back-up QB on the cheap. I think he'll do good in this offense if he had to come in, and we might would have won some of those games last year with him in there instead of Brad Johnson.
I mean, he may not be the best back-up in the league, but you can't ask for a whole lot more considering his price, his experience, and the fact that he can still play, at least better than Brad Johnson or Brooks Bollinger