The Terps are 1-1-0 after their loss to Virginia.
The Terps' starting lineup against the Cavaliers had just two regular starters from 2018.
The Terps conceded a goal for the first time in 297 days.
Johnston scored the game winner against USF.
The Terps have been outscored 9-0 in their past two games.
The Terps conceded two penalty kicks in the rout.
Coach Ray Leone said a replacement will be decided upon in Georgia.
Midfielder Malcolm Johnston scored the lone goal.
Brown is adjusting to a new school and a new position.
Coach Sasho Cirovski believes another challenging slate could lead to a second straight national championship.