Oklahoma State has quite the pattern of coaches transitioning from Cowboy offensive coordinator to head coaching success.
Since '97, four OK State offensive coordinators have went on to become head coaches, and those coaches hold a combined 36-4 record this season.
Les Miles served as offensive coordinator with the Cowboys up until 2005 and took the head coaching position at LSU in 2001. Miles is currently 10-0 this season as head coach. Mike Gundy took over for Miles, and is also currently 10-0.
The other former offensive coordinators turned head coaches are Southern Miss' Larry Fedora (2006-07) and West Virginia's Dana Holgorsen (2010). Fedora is currently 9-1 with the Golden Eagles and Holgorsen is 7-3 in his first season with the Mountaineers.
Todd Monken is in his first season with the Cowboys and will likely become a head coach soon enough.
On paper at least, it seems if you want to become a successful head coach, Oklahoma State offensive coordinator would be a good place to start.