I'm not too sure bringing in an offensive minded coach is the way to go though. Sure the league is becoming an offensive one, but I think the real problem with this defense, other than a lack of pass rush(though this would certainly correct it to an extent) is that we have the personel for a 4-3 but don't run it too often. I wanted Teryl Austin last season to replace Harbaugh. I think the same thing. We've invested too much on the offensive line for power players to run a zone scheme. Orlando Brown jr. in a zone scheme is just asking for him to be eaten alive. I think Roman and Urban are going to stay here. For all this talk that "Marty is integral to Lamar's development", no two people on this staff are more equipped to develop a QB like Lamar Jackson than Roman and Urban. Roman is absolutely ideal for his role as a run game coordinator, and in fact is the perfect OC for him anyways. Roman is amazing at implementing two TE sets, which under Lamar can be devestating. We would need to find a running back that fit the scheme, but the draft will have a few quality options.
I'm still on Teryl Austin. We've made the investments on the defense. Let's get a guy who has gotten more out of far less talent. Our defense is better equipped for his 4-3 anyways. It would easily preserve Suggs, Tim Williams would be far more effective, Pierce and Henry would be a nice 1-2 punch with Wormley and Seiler also rotating in(actually... All of them are kind of better fits in the scheme anyways). Judon works far better as a power rusher with his hand in the dirt.
We have the pesonel to have a damn good 4-3 LB corps anyawys. TYUS BOWSER IS NOT AN EDGE RUSHER. STOP USING HIM LIKE THAT. And Kenny Young has proven in limited action that he could be a top tier WILL LB in this league. We have the ideal MIKE in CJ. Bowser and Kenny could provide excellent pieces in that regard.
I'd keep the offensive staff that we do have with Roman and Urban and promote one of them to OC. Let Lamar develop with people he is familiar with. I'd hire Austin. Familiar with the organization, players here really liked him. Proven commodity as a DC, ideal personnel.