And that is the answer of course. My favorite team of yore, The Oakland Raiders, were a notoriously rowdy bunch. Now, you could argue that they would have won a few more games if they had said their prayers and went to bed at a decent hour rather than party unto 3am in the morning on Super Bowl Sunday.
Counterpoint: Your Raiders faced my Iggles in the Superbowl after the 1980 season. The Raiders partied and made the week a blast. On the other side Coach Dick Vermeil worked the Eagles like dogs and maintained iron discipline. He had them wound tighter than imaginable. Big let down from the Birds, the Raiders were loose and won and it wasn't really in doubt. As many ways to win as there are personalities.
In the case of the Eagles, Carson Wentz is born again and wears it on his sleeve. He's inspired many others to follow in his footsteps, like Zack Ertz. Lots of the black players are also deeply faithful and they pray with the QB and the tight end and other white guys and they hang out together and call each other brothers. Their open expressions of faith pulled that locker room together as closely knit as I've observed from watching sports over decades. That works for them, probably wouldn't with many other groups of guys.