These would be my picks from this article..
1. Ed DonatellBears defensive backs coach Ed Donatell would likely be the in-house favorite, although if Fangio leaves to another team, he could try and bring Donatell with him. He's coached under Fangio for each of the last eight seasons dating back to their time together with the San Francisco 49ers. Donatell was also previously the defensive coordinator for the Green Bay Packers and Atlanta Falcons for six years in the early 2000s.
His experience and familiarity with the scheme could make him a natural successor to Fangio in Chicago, and he deserves a lot of credit for the work he's done with the Bears secondary over the last four seasons.
2. Todd Bowles
If Matt Nagy wants to opt for a more experienced Vic Fangio replacement, Todd Bowles could fit the bill. He was the head coach of the New York Jets for the last four seasons, a job he earned after two strong seasons as Arizona Cardinals defensive coordinator from 2013-2014. Bowles is expected to be a hot commodity on the defensive coordinator market, especially with his former head coach Bruce Arians potentially available once again.
The timing might not work out if and when Fangio would be hired away, but Bowles could be the veteran coordinator that pairs well with the young Bears head coach.
3. Mike CaldwellMike Caldwell actually played linebacker for the Chicago Bears back in 2002, and it turns out he's well connected to head coach Matt Nagy. The two of them both started with the Philadelphia Eagles back in 2008, working their way up from quality control coaches on opposite sides of the ball. They both left the team when Andy Reid was hired by the Chiefs in 2013, but Caldwell didn't follow them to Kansas City, instead taking a job as linebackers coach for the Arizona Cardinals. Since then, he took the same position and added the assistant head coach title with the New York Jets under Todd Bowles.
If he and Nagy maintained a strong relationship from their days together in Philadelphia, he could be a younger, under the radar option to step in for the Bears.
4. Jay RodgersJay Rodgers might be the Bears' most overlooked position coach. He's younger and a little less experienced than some of their other assistants, but he's done a tremendous job with the defensive line in Chicago that does so much of the dirty work. Rodgers helped coach Akiem Hicks to Pro Bowl status while developing Eddie Goldman into one of the league's top young nose tackles. Just this season alone, he helped mold rookie fifth-round pick Bilal Nichols into essentially a starter as their top defensive end opposite Hicks. Rodgers also has experience working with the other side of the ball, coaching quarterbacks and wide receivers at various college programs before coming to the NFL and switching to the defensive line.
His wide range of background could offer some different perspectives to the defensive coordinator position, if he's ready to step into the larger role.
http://www.msn.com/en-us/sports/nfl/7-potential-replacements-for-vic-fangio-as-bears-defensive-coordinator/ar-BBRWol5?ocid=iehpTomsula is on this list too lol.