I think you are missing the point. Win/lose record has no bearing if you put up other solid numbers. With solid numbers, your W/L basically depends on your run support.
And its no like run support has any thing to do with him and run support will possibly change dramatically when you switch teams, depending on the offense.
I mean, its not like our players are going to go out there and say "You know what, Matt is pitching today, and frankly, I don't feel like hitting so I'll just take a lesson from the Cubs and go 0-4 with 3 K's.