The Giants were not going to play .667 baseball for the whole season, as they had through their first 63 games, but they certainly looked like a team that was too good to play .250 ball for a month. The easiest way to explain a collapse of this kind is to attribute it, in one for or another, to a change of luck and injuries. Luck and injuries certainly have played a role, but that is only part of the story.
Lincecum, however, is only under contract for another year and a half, but has been pretty bad over from 2012 to today. During this time he has an ERA of 4.77 and walked almost four batters per nine innings. He has also occasionally shown signs of his old self. He has averaged a strikeout an inning, was dominant coming out of the bullpen in the 2012 post-season and even threw a no-hitter last year. It is possible that some pitching coach somewhere thinks he can fix Lincecum and would like his team to get him. The Giants are unlikely to get much back for Lincecum, but a team might take his salary off their hands, and free up his spot in the rotation so that it can be upgraded.