- Hired as Cardinals defensive coordinator on 1/26/18 after spending the previous five seasons as the linebackers coach with the Carolina Panthers. Worked with current Cardinals head coach Steve Wilks the past five years in Carolina.
- The Panthers finished in the top-10 in total defense in four of Holcomb’s five seasons with the team, including finishing second in the NFL in 2013 (301.3 ypg).
- Under his guidance, Panthers LBs Luke Kuechly and Thomas Davis developed into one of the best linebacker duos in the NFL. Kuechly earned NFL Defensive Player of the Year honors in 2013 and was selected to five consecutive Pro Bowls (2013-17) while also being named first-team All-Pro four times (2013-15, ‘17).
- Davis made three consecutive Pro Bowls (2015-17) and was named first-team All-Pro in 2015. He had 100+ tackles in four of five seasons working with Holcomb.
- In 2017, Carolina finished seventh in the NFL in total defense (317.1 ypg), third in sacks (50), and third in run defense (88.1 ypg).