Well this is your off the radar candidate that I have been looking for General Manager John Elway to target. According to Mike Klis of the Denver Post the Broncos have set out to compile a "well rounded" group of Head Coaching Candidates. While the Broncos were calling around gathering information on potential hires they came across Vance Joseph who is considered a potential rising star among the NFL coaching ranks. Joseph has been gaining some attention as a potential Defensive Coordinator from some teams, but the Broncos view him as a potential Head Coach.
Joseph is currently the Defensive Backs coach for the Cincinnati Bengals. He has held coaching positions with the Houston Texans, and San Francisco 49ers prior to his current stint with the Bengals. He's also had some college coaching experience with the Colorado Buffaloes, the Wyoming Cowboys, and the Bowling Green Falcons.
While it's rare for positional coaches to get a Head Coaching job, it's not impossible. Mike Tomlin, John Harbaugh, Andy Reid, and recently Jim Tomsula have all got their first head coaching gigs directly from position coach.
The Broncos interviewed Offensive Coordinator Adam Gase today, Detroit Lions Defensive Coordinator Teryl Austin is expected to interview for the Broncos Head Coaching job on Friday, and they have formally requested to speak to Baltimore Ravens Offensive Coordinator Gary Kubiak. Now add Joseph to the list of Denver Broncos Head Coaching candidates.