He previously served for 17 seasons as the head coach of the University of Southern California women's volleyball team.

Prior to this he served for 17 years as the head coach of the University of Texas women's volleyball team.

Haley was a setter at Ball State under legendary coach Don Shondell and helped the Cardinals to the 1964 and 1965 MIVA title.

In his last season there, the men's team, the only jr. college in the conference, won the MIVA, beating Ohio St. in the finals 3–0.

Just in his second year, Haley led the top-seeded Trojans to the program's second NCAA championship – and first since 1981 – by defeating Stanford University in the final, 3–1, avenging their only loss of the season to the Cardinal.

[6] Haley subsequently retained legal counsel to pursue an age discrimination complaint against USC.

Despite the admissions scandal at USC costing Mick Haley his position, he has indicated an interest in continuing his coaching career at another school.