dumbest scoring rule in sports?

Sort of related to Fung's dumbest sayings... Today in the Oakland/LAAoA,CA game, K-Rod came into a 6-3 game and blew the save, giving up 3 runs. In the bottom of the inning, the Angels scored and won 7-6. And who gets "the win"? Rodriguez. How is this rule still on the books? Just give the win to Lackey, who was in line for it before K-Rod came in and blew it for him. Or give it to one of the other relievers who didn't totally suck. Of course, pitcher wins are often luck-based, and in many cases don't reflect if you pitched well or not (see Adam Eaton). But getting a win in this situation is just plain idiotic. It's even dumber than the save rule.