Jacob Peterson at JunkStats tracks Dumb Luck Wins for pitchers, where the starter gets the win despite giving up at least four earned runs [EDIT: And putting up a negative WPA, thanks Scrutinizer]. Guess which was the only team with no Dumb Luck Wins? (Hint: You're reading a Pirates blog.) This isn't too surprising, since you can't get a DLW if your team doesn't score 5 runs.
Pirates pitchers didn't have any Tough Luck Losses either, though five other teams also pulled that off.