Maybe Jon Gruden ends up being Saints HC?

He's a .500 coach!

He coached for 15 years and have 6 winning seasons vs 6 losing seasons with three evens. His Super Bowl team was pre-made by another coach that went on to win a SB himself. TB followed their SB win with back 2 back losing seasons under Gruden. His last winning season as a coach was a 9-7 season back in 2008.

PASS!
Not advocating for Gruden, but to be fair, the team TB beat in the Super Bowl was the team Gruden built with the Raiders.

If you say TB was pre-made by another coach, then Gruden should probably get credit for putting a SB contender together with the Raiders before leaving.