1. Gus Bradley - DC, Seattle Seahawks
Gus Bradley is one of the up and coming coordinators in the league right now. I know we've gone the "hot coordinator" route before, but, it seems like the best route to go, especially in the absolute rebuilding process (which is what we would be in if we hired a new GM/head coach). Monty Kiffin gave his personal recommendation for Bradley when Mora was coach in Seattle, and the guy has had a defense that is progressively getting better.
The guy has drafted incredible players, while adding players through free agency, to bolster his secondary to be one of the best in the league.
2. Wade Phillips - DC, Houston Texans
I know, I know. Everyone thinks that Wade Phillips is a bum, not just Bum's son. He had a rough go of it in Dallas, I know, and he's 1-5 in the playoffs. But, the guy has a winning record where he goes. Not only that, but he has instantly changed the defense into something special in each place he has gone. We would really need a season to transition into Wade's blitzing 34 system, and we'd need to get a really strong OC that could control that entire side of the ball (not Chud, obviously). But, in the end, our defense could be one of the best in the NFC, and we could really get back to a dominant running game.
3. Will Muschamp - HC, Florida
Premature? Maybe. But Will Muschamp is a guy who understands how to win. He won while at Texas, he's winning while at Florida, and he does it in a true NFL fashion. Win in the trenches, win with the defensive line, and win by establishing the run. Will Muschamp has been an assistant head coach in the NFL on the 2005 Miami Dolphins team, after which he went back to college to be a DC and subsequently a head coach.
One thing Muschamp brings to the table is emotions. Muschamp is the antithesis of Rivera. He's yelling, screaming, and cheering on his players. He's like a younger, more exuberant version of Pete Carroll. Also, another thing, if we kept some sort of remnants of the spread offense (with or without the read-option), Muschamp would know it like the back of his hand, having to defend against it all of his years spent coordinating in college.