Crediting the starting pitcher with the win is retarded. It's a team sport, of which the starting pitcher is but one of around 13 players to be involved in the game at any time.
Naming this stat "win" is the only reason anyone cares about it at all. If it had a more appropriate name like "game where starter held the lead when he left the game then the rest of the team didn't blow that lead" no one would give a s*** about it due to the completely arbitrary nature of how it is awarded.