Tommy spent a year with the Chargers and a year with Northwestern. You would also think, with his overall background, he has some good football savvy.
After reading and listening to the analytics and other stuff, and having been part of epic offensive failures in big games, you would hope Rees can convince Kelly to open up the playbook a little more, put some gamebreakers into the game, and try to be more creative on offense.
If Kelly tells Rees, "We're going to do what we do, only better," ND won't score 11 points. I don't believe Rees being a young first-year coordinator is the problem so much as Kelly's stubbornness.
You would think the other offensive coaches know football, too (obviously), so I don't know if there's something equal to an intervention in football or whatever, but hopefully the coaches can convince Kelly that the same old/same old will result in a rout.