Could he be hanging on a bit too long? It's hard to see one of the greats struggle, even if it's not all his fault. Watching Arnold Palmer in his last few years on the Seniors Tour was tough. It wasn't fun watching the King shoot in the 80's.
If Favre (Fav-ra) still has what it takes to make his team competitive, I say go for it. His team wants no one else. GB's fans want no one else. I don't see a good reason to leave unless he wants to.
"If I claim to be a wise man, it surely means that I don't know." - Kansas
Im not really surprised that he decided to keep playing. I doubt he will play more than 1 more season though. Like others, I figure he can still play and wants to go out after a winning season.