So let's remove his worst appearances and then he would become average. Only if life worked that way...
As a closer, you get a long leash to either close or blow the game. The reason his numbers are what they are is because the Jays have stuck with him in games when he was clearly off.
His performances clearly tell you that hes a really good 7th/8th inning guy who you take out when hes not on. You know, the role hes had during the best years of his career.