I think QB was a pressing need in 2005. Favre was turning 36 and had openly talked about retirement. Providing his replacement wouldn't be a one year deal. It was definitely time to get one. Heck, Sherman admitted the year before that he would have taken Losman in the first round if the Bills hadn't traded up to get him. (We should all send thank-you cards to the Bills. Favors like that should never be forgotten!)