Baker replaces Cory Robinson, who left the program in March.
“We remain optimistic about the return of fall sports," athletic director Damon Evans said.
Akingbesote is the fourth four-star recruit to commit to the Terps' 2021 class.
The quarterback had announced his intent to leave the program in early February.
Taulia Tagovailoa is a former four-star recruit and the brother of now-Miami Dolphins quarterback, Tua.
The three-star product joins the Terps from nearby St. John's College High School.
Lewandowski racked up 2,804 yards and 28 touchdowns in 10 games for Wisconsin-La Crosse last season.
Bradley is Maryland's 11th recruit — all of whom hail from Maryland, Washington D.C. or Virginia.
"Javon is a big time playmaker who has the ability to hit the home run."