There are plenty of current coordinators ready for head coaching positions in the NFL.
The San Diego Chargers, Philadelphia Eagles, Chicago Bears, Jacksonville Jaguars and the Arizona Cardinals have all conducted thorough searches, and many of the league's most respected coordinators have been considered.
Let's take a look at the best coordinators still available for head coaching gigs.
Mike McCoy is a hot commodity in the 2013 head coaching search because of what he has done over the past two years with the Denver Broncos.
In 2011, he totally restructured his offensive scheme when Tim Tebow was named the starter and got the most out of a rather dicey situation.
This year, he certainly hasn't held back Peyton Manning, that's for sure.
In fact, McCoy received quite the ringing endorsement from the iconic signal-caller in a recent USA Today article.
If you want offensive innovation and a willingness to mold an offensive scheme around the talent on your roster, McCoy is your guy.
Bruce Arians is a front-runner for the Coach of the Year award.
After Chuck Pagano was forced to leave the Indianapolis Colts sideline to battle leukemia, the team's offensive coordinator stepped in and Indy finished with an 11-5 record.
Arians' system relies on a variety of vertical routes, and Andrew Luck undeniably thrived in his offense as a rookie.
For a club looking for an offensive guru, Arians is a prime head coaching candidate.
Mike Zimmer has been a trendy head coaching candidate for a few years now but has yet to been given a shot.
In 2011, his Cincinnati Bengals allowed the fourth-fewest yards per drive and the ninth-fewest points per drive, according to Football Outsiders.
This season, Zimmer led a unit that allowed the six-fewest yards and points per drive.
His fiery demeanor and steady success on the defensive side of the ball will be the reason he is ultimately hired as a head coach.
Bengals offensive coordinator Jay Gruden isn't held in as high of a regard as Zimmer, but the brother of Jon Gruden will get looks from teams with head coaching vacancies.
The Bengals haven't had the most explosive offense during Gruden's tenure in Cincinnati, but Andy Dalton and A.J. Green have become a fine quarterback-receiver connection.
In 2011, Gruden's unit finished 20th in points per drive, per Football Outsiders.
In 2012, the Bengals improved to 14th in points per drive.
Although Jim Harbaugh deservedly gets a ton of credit for the job he has done revitalizing the San Francisco 49ers, offensive coordinator Greg Roman has played an integral role as well.
He has been a confidant of Harbaugh since his Stanford days and has a firm grasp of Harbaugh's balanced and new-age offensive attack.
For a team that went through a quarterback change in the middle of 2012, the 49ers finished ninth in points per drive.
Want to run your offense like Jim Harbaugh's?
Hire Greg Roman.
Have you seen the way the Seattle Seahawks defense plays?
Fast, downhill, aggressive and intimidating.
Some of that is due to the personnel, but there's no reason why defensive coordinator Gus Bradley shouldn't be given a chance to interview with teams looking for a head coach.
Todd Haley's experience will likely be his primary selling point to teams, especially after his accomplished stint with the Arizona Cardinals.
Though his failed tenure as the Kansas City Chiefs' head coach may scare some teams away, worse coaches have been rehired before.