The Colorado football team has lost a pair of graduate assistants.

Offensive grad assistant Patrick Williams and defensive grad assistant Tyrone McKenzie have left the Buffaloes for other opportunities.

CU associate athletic director David Plati said Williams will work with the NFL's Baltimore Ravens, while McKenzie will join the staff at Stanford. It's not clear what role either will fill with their new teams.

Both were valuable members of CU's staff during their time in Boulder.

Williams, a former CU receiver, returned to the Buffs in 2013 as the assistant director of recruiting. In 2014, he moved to a graduate assistant role, helping to coach receivers and filling other duties on offense.

Williams was a CU captain in 2008, and he caught 104 passes for 1,070 yards during his CU career. He then played three years in the NFL, spending part of the 2011 season on the Ravens' practice squad.

Last summer, Williams spent two weeks working with the Ravens as a scouting intern, as part of the Nunn-Wooten Scouting Fellowship.

McKenzie, a former NFL linebacker, spent just one season in Boulder. He was hired as a graduate assistant last July to join his former college head coach — Buffs defensive coordinator Jim Leavitt — at CU.

McKenzie worked with CU's outside linebackers, and senior Jimmie Gilbert credited McKenzie for helping him improve over the past year.


CU is in the process of finding replacements for Williams and McKenzie.

Brian Howell:, on Twitter: @BrianHowell33.