These are some interesting subtweet theories...
I think it's Rob Chudinski or Todd Downing. Downing was Jacks OC in 2017. Chudinski turned around Carolina offense during Cam's rookie year he eventually got Cleveland HC job off of it. Then was with Chuck Pagano till 2017 who's family is close with Jack and Ron.
Todd Downing, Rob Chudinski, Pat Shurmur, Scott Turner would be surprised if it isn't one of them. Jake Peetz I'd say will be Qb coach and Carolina Te coach is close with Ron I'd expect the staff to be filled by those guys. He is really loyal to a fault with coaches.
However, when Ron talks about seeking permission Caldwell and Downing would qualify because they're with other teams.