Michigan to promote Mike Boynton Jr. as interim coach, replacing Dusty May

After Dusty May's stunning exit from the Michigan men's basketball program, the Wolverines will be looking within for the immediate replacement.

Michigan is expected to promote assistant coach Mike Boynton Jr. as the interim head coach, according to multiple reports. The decision comes less than a few hours after May's departure to take the job with the NBA's Dallas Mavericks on Monday, June 22.

Boynton joined May's staff when he arrived in Ann Arbor in 2024, after spending seven seasons in charge of Oklahoma State. His time with the Cowboys was up-and-down, with one NCAA Tournament appearance in 2021 with a team that featured eventually NBA draft No. 1 overall pick Cade Cunningham. In addition to the one March Madness trip, Oklahoma State had two NIT bids under Boynton.

He finished with a 119-109 record in Stillwater.

At Michigan, Boynton has been in charge of the team's defense, which was among the best in the country in the past season, giving up just 69.5 points per game with a nation's best 38.2% defensive field goal percentage.

It's a move that makes sense given Boynton was the only staff member with head coaching experience. The Wolverines previously had an assistant in Justin Joyner, who left to take the Oregon State job.

May's departure this late in the summer also makes it rough for Michigan to find a permanent replacement option when nearly all coaching positions are filled. Boynton will likely be in charge of Michigan for the entirety of the 2026-27 season as the Wolverines searched for a permanent replacement, which Boynton could end up filling.

Michigan is coming off a national championship season, and when Boynton's hiring is official, he will have to work to ensure the team's roster stays intact given the transfer portal rules for when a new coach is hired.

Can Michigan basketball players transfer with Dusty May leaving?

Yes, NCAA rules allow for the creation of a special transfer portal window following a head coaching change. At that time, players can enter the portal and potentially sign with another team.

When can Michigan players enter the portal?

According to the NCAA on Jan. 14, 2026, the Division I Cabinet enacted immediate rules changes for the transfer portal, including those for a team going through a coaching change.

Per the NCAA:

When a head coaching change occurs, a 15-day period will open five days after the new head coach is hired or publicly announced. If a new head coach is not announced within 30 days of the previous head coach's departure — and the 31st day after the head coach's departure is after the championship game — a 15-day window will open. The additional head coach departure window is available only after the basketball transfer window opens through Jan. 2.

Five days after Michigan hires or publicly announces its hire, the 15-day transfer portal will open, allowing players to enter and potentially sign with a team. The 15-day window will open if the Wolverines are unable to make a hire within 30 days of May's departure for the NBA.

That is separate from a 15-day transfer window that opens the day following the championship game, which in 2026 was on April 4.

Mike Boynton coaching record

Boynton joined May's staff in 2024 after serving seven years as Oklahoma State's head coach. Boynton was on Brad Underwood's staff for a year at OSU before Underwood left for Illinois. Boynton was elevated to head coach and posted a 119-109 (.522) record, which included two NIT quarterfinals appearances and a trip to the 2021 NCAA Tournament.