Higher win %. Yes. They perform about the same ATS though. A team may be more motivated if they hated their head coach. Also, usually when a head coach gets fired when they're coming off some games where there's some unlucky statistical randomness (turnovers, unlucky bounces, etc.) and a regression to the mean is bound to happen. You got some of that in the Denver game where the weather was awful and the London game where Rodgers uncharacteristically threw three int's.