Mike McCarthy's status as Cowboys head coach is still up in the air ... but ex-NFL star turned Dallas assistant coach Domata Peko tells TMZ Sports it's quite clear what Jerry Jones needs to do -- bring back Coach!
We caught up with the former Cincinnati Bengals defensive tackle -- who was hired to work on McCarthy's staff this season -- at LAX this week ... when we asked him about Mike's future in Big D.
View this post on Instagram
"Every time you play a season, you never know who's gonna have a great year [and] who is not gonna have a good year," Peko said.