There's no easy way out of this

Hot take here:
Hire someone from the Dan Campbell coaching tree. Sure it is in its infant stage right now, but it has that old school football mentality, with the new school approach, and is built for the current age of play. If the Lions team can be rebuilt, then so can ours
You can't give Campbell very much credit for the Lions turnaround, He's the Ogeron of the NFL. Having multiple high draft choices from sucking for many yrs and also getting a boat load of 1's and 2's and Goff for trading Stafford was the beginning. Having a very good GM and drafting very well (having all those high picks helped ). THEN and here is where his success lies , he has a great OC and a good DC in Johnson and Glenn