Miami athletics director David Sayler has not yet appointed an interim coach.
The school also relieved offensive coordinator John Klacik of his duties, effective immediately.
Schools generally make coaching changes during open dates, and the next open date for the Redhawks is Week 10. Sayler said he couldn’t wait until then to make a change.
“I have decided to make a change in our football leadership now in hopes of seeing improved performance for the rest of the season,” Saylor wrote in a release Sunday. “Miami University takes the interest of our student-athletes seriously and this discussion is the result of the past nine months since I’ve been on the job.”
This firing comes on the heels of Miami’s 21-9 loss against visiting Central Michigan on Saturday.
Treadwell was 8-21 at Miami and finished 4-8 (3-5 Mid-American Conference) in each of his first two seasons.
“Don is a great man, nobody can disagree with that, but I felt a change was needed immediately in the direction of the program,” Sayler wrote. “That direction involves making our program relevant again and restoring pride that should accompany being the all-time winningest program in the MAC.”
Miami (0-5, 0-1 MAC) visits Massachusetts at 3 p.m. Saturday at Gillette Stadium in Foxborough, Mass.