While head coach Matt Nagy hasn't been fired yet, it's been rumored for months that he will be relieved of his duties after the season.
And Harbaugh has deep ties to the Bears organization, much like he does with the Raiders. Feldman noted that Harbaugh began his coaching career with the Raiders in 2003.
Harbaugh played quarterback for the Bears for seven seasons after Chicago drafted him in the first round of the 1987 NFL Draft. He held a 35-30 record as the starting quarterback.
His 11,567 yards passing is the third best total by a Bears quarterback behind Jay Cutler and Sid Luckman, ahead of Jim McMahon.
And with just one week to play in the 2021 NFL season, a number of head coaching jobs are expected to open. The Raiders and Jaguars currently employ interim head coaches in Rich Bisaccia and Darrell Bevell, respectively, and they could both be looking for a new permanent hire.
The Minnesota Vikings, New York Giants, Denver Broncos and Carolina Panthers are other potential Harbaugh suitors if a coaching change is made in 2022.