Joe Gibbs is way ahead of those guys. I'm sure there were other christian superbowl coaches before Joe, too. Mmm, maybe Don Shula and George Allen, who met in Superbowl 7. Who knows. A very wonderful testimony, all the same.
I'm sure he knows about his brothers in Christ who preceded him.
While I'm sure God doesn't care about winning football games, He does help His children who desire to do their best for HIM.
That's the message here, IMO.