The primary questions are whether that approach will work with the NFL's smaller rosters and longer season.
That's a battle Kelly won't win.
What he can control, though, is subbing more liberally to keep fresh legs in the game and adjusting his play-calling once the tempo slows as it did in the second half Monday night.
"We may have eased," Kelly acknowledged. "It's a different game than in college. We have a lot to learn."
Kelly garners well-deserved accolades as an offensive mastermind, but it's his curiosity and pliability that have kept him one step ahead of his peers.