3. Ejiro Evero, Defensive Coordinator, Carolina Panthers
One of the most polished, respected and "ready" candidates you will find in league circles is current Carolina Panthers defensive coordinator Ejiro Evero. No one would have guessed, but the Panthers' defense currently ranks no. 8 in yards allowed this season. They have been a highly underrated unit, despite the Panthers being one of the worst teams in the NFL record-wise.
Before this season, Evero was already looked at as a future NFL head coach. It's only a matter of time. He has a history of coaching good defenses with a focus on the secondary. Tennessee's pass defense has struggled mightily, so Evero would be a sensible candidate to not only help that area, but to improve the defense as a whole.
Evero is a former player, having spent just one season with the Raiders' practice squad, but he's been around football his whole life. He's a student of the game and is someone that Broncos head coach Sean Payton might seriously regret letting go of when he took over in Denver. The Titans may not necessarily be looking for a defensive-minded head coach, but if they are, Evero is a fantastic candidate and would likely bring in the right guy to lead his offense.