As noted from Michigan DE Taylor Upshaw, the new Wolverine D-staff has an emphasis on the team having fun and playing music during practice:
Taylor Upshaw says Michigan's practices were lacking fun before.
Now, there's more juice and energy, he says. They're playing music now, and it's more fun and competitive.
— TheWolverine.com (@TheWolverineMag) April 5, 2021
The new defensive staff is younger so it would make sense why they are adding more energy to the practices.