One of Alabama's top assistant coaches is leaving the program for a promotion in the Pac-12. 

Alabama assistant head coach/offensive tackles and tight ends coach Mario Cristobal is set to become the co-offensive coordinator at the University of Oregon as part of Willie Taggart's staff. 247Sports and ESPN first reported the news.

Cristobal departs Alabama after spending four seasons in Tuscaloosa. The former Florida International head coach helped the Crimson Tide offensive line win the Joe Moore Award in 2015 and developed Rimington Trophy winner Ryan Kelly and Outland Trophy winner Cam Robinson.

Cristobal has also been a vital part of the recruiting efforts in Tuscaloosa. 247Sports named him National Recruiter of the Year for the 2015 class and he's currently ranked No. 2 for the upcoming class. As Alabama's recruiting coordinator, he's landed five-star prospects Jonah Williams, Cam Robinson, Alex Leatherwood, Jerry Jeudy, and Calvin Ridley.

There hasn't been any official announcement about the move by either school at this time.