Going with the Minter model of a "head coach for defense" who does NOT have a position title
DC- Cullen
DL- Sterling Lucas would be the dream. Within the last two weeks he was bumped to $575k. Let's be honest, nothing about the last 3-4 weeks suggests bidding wars being won. I'll throw out Jason Brooks, asst DL with the Steelers. His father was a longtime Ravens assistant. Jason has some experience in the Baltimore system as well.
LB- A handful of really interesting names here. The most intriguing could be 31 year old Alex Whittingham, Kyle's son. Currently an assistant LB coach with the Chiefs. Rod Wilson, another Chiefs assistant makes sense here too. Cullen has a prior relationship with former UM Asst Brian Jean Mary. He's currently at Tennessee with $665k attached to him. I would rather save the co-DC that he would likely require. Tony Gilbert, 44, was recently let go in Jacksonville at LB and has experience in Cullen's system as well.
CB- Brian Duker, an asst DBs coach with the Lions makes some sense here. There are honestly not a lot of great options that would be widely available. Hopefully Clink remains an option. Archie Collins has ties to Sherrone from their Cemtral Michigan days and would be a lockdown recruiter in Detroit. Currently on Pat Narduzzi's staff at Pitt.
S- If they opt for a name other than Clink or he goes to A2 West, then I would dangle the co-DC tag for NFL options such as Aubrey Pleasant, who could be available after being passed over for two different DC jobs involving his own staff (Rams and Falcons). Other names worthy of the co-DC tag could be former Seahawks assistant and Baltimore vet Roy Anderson. Jordan Kovacs and Cato June are UM-centric names that come to mind at S or LB as well and may be more attainable than some others. Coach Moore and Deon Broomfield from Iowa St quietly exchanged Twitter follows early in the process and he could be someone they target.