The WIAA Executive Board also shortened the seasons, the first of which is scheduled to begin Feb. 1.
Sports will get regional culminating events as the WIAA seeks more flexibility to try and get any sport played this school year.
The four-star prospect announced his commitment via Instagram.
The Cougars' new defensive coordinator has a big job building a new defense.
Schools return to the field will be dependent on infection rates in their counties.
The nation's top recruit for 2021 also included Alabama, Ohio State and Michigan on his short list.
Basketball season will start earlier under the new plan.
WIAA reorganizes high-school sports seasons in wake of coronavirus pandemic, moves football to spring
The three-season model normally used by the WIAA is out the window as there will be four seasons for 2020-21.
Pierce won the 1991 national championship driving the Miss Budweiser.
Another member of Kennedy Catholic's prolific passing attack has found a place in the Pac-12 Conference.