What position did Jim Brown primarily play?

What position did Jayden Daniels primarily play? Jayden Daniels is best known for playing with which NFL team? Which college was Jayden Daniels playing for when he entered the NFL? What jersey number did Jayden Daniels wear with the Commanders? Which college was Jim Brown playing for when he entered the NFL? What jersey number did Jim Brown wear with the Browns? Which college was Walter Payton playing for when he entered the NFL? What jersey number did Walter Payton wear with the Bears?