Pete Carroll isn’t coming here to be a DC.
If we’re going full preference, not reality—My preference is to do what the packers did, find an experienced, aggressive playcaller from college. They took Jeff Hafley from BC, my pick for DC is former Florida State DC Adam Fuller.
Known for top 20 college defenses and developing multiple highly drafted talents, like Jared Verse and Braden Fiske the DT and Jarron Jones this past draft alone (along with Asante Samuel Jr. and 6 other drafted defensive players after round 3 between 2020-2024) moves back to a 3-4 scheme, which is leaving the 1990s behind and stops playing Gervon Dexter out of position, and changes the defensive identity back to aggression, because that’s what you need in a 3-4. You don’t run the scheme like Chuckles Pagano did, like bend/don’t break, because that’s how it looks shitty like at the end of the Pace days.
From the list provided, I pick Dennis Allen. Known for having great 3-4 schemes and units. Again, modernization of the game is happening at the HS and college levels and it’s here in The NFL. The ways of old and what was once “prototypical sized” has completely changed. It’s be nice if a team long known for defense could prove they can change/adapt with the times, but now I’m being naive.
Poles is still here, so they’re probably staying with a 4-3 cover who—so….I expect a complete lukewarm hire where many of us have to constantly convince ourselves he’s not THAT bad. Can totally see Mike Zimmer being hired to do what OP sees Pete Carroll doing.