In April 2010, Grayer was hired by Greg McDermott as an assistant men's basketball coach at Iowa State.[1] In August 2010, after McDermott left to take a position at Creighton University he was replaced by new coach Fred Hoiberg. Hoiberg retained Grayer as Director of Basketball Operations rather than as an assistant coach, and Grayer left shortly after and returned to his home state of Michigan, citing a desire to be a coach as his reason for leaving.[3]
Grayer is the father of professional basketball player Jaire Grayer.[4]