Scott is a 5-foot-10, 224-pound three-star running back whose other offers include Indiana, Kent State, Michigan State, Minnesota and Wisconsin.
He showed impressive athleticism this spring on the Nike combine circuit registering an electronically timed 4.76 40-yard dash, 4.25 20-yard shuttle, 30.4-inch vertical, 42-foot power throw and 110.82 SPARQ.
Polk, a three-star, also had scholarship offers from Ball State, Eastern Michigan, Indiana, Massachusetts, Ohio and Toledo. He's a 6-1, 188-pound wide receiver with a 32.6-inch vertical.
The Cardinals class is ranked 20th nationally.