Okay, wait, wait, wait...
So, Simple Jim's LB coach bails for the same job at tire fire Tennessee in a lateral move and he replaces him by hiring a new QB coach. BUT THAT'S NOT ALL! The guy he's hiring to coach his QBs and newly arriving 5* prized recruit, JJ McCarthy, has NEVER coached QBs before. His resume has the following job titles (most recent on down): RB Coach, WR Coach, Offensive Assistant, CBs Coach, LB Coach/Defensive QC, Defensive QC Coach, Head Coach's Assistant. He's replacing, supposedly, one of his best recruiters with a career NFL assistant who has never coached or recruited in college.
https://pro-football-history.com/coach/858/matt-weiss-bio
So, he has bounced around all over the field, coaching LBs, CBs, WRs & RBs but NEVER QBs. He never stayed in one spot for more than 2 years, aside from 3 years as "Head Coach's Assistant." Brilliant. Utterly BRILLIANT!
*EDIT* - _goblog is saying he did work with the Ratbirds QBs in 2016/17, when they had a shitshow at the position with Flacco/Mallet. They're unsure of how much a hand he actually had in coaching the position.