if Cowboys were adamant about replacing and upgrading the OL coach role, ..it would have already been done by now, imo..
And i would've thought OL coach Mike Munchak's name would've came up immediately as Munchak is regarded as one of the best OL coaches in the NFL, .
... but he runs and believes in a man up-power scheme game, (ditto with Marc Columbo) while McCarthy believes in a zone block scheme., which he fully operated at with GB.
.and from all accounts will continue to do so.
Thus Munchak may have been released based on OL scheme and philosophy alone. New Denver HC Hackett is a descendant from the GB school of OL and likely
may strongly prefer that GB way of OL scheme.
- i thought if MM was pushed to replace his OL buddy Joe Philibin, while keeping the zone scheme he strongly prefers, then another coaching option would have
been another offensive assistant James Campen who was his OL coach at GB since the mid 2000's - but i have not heard about Campen's dismissal from the Texans,
if new HC Lovie Smith had preferred to.