What position did Edgerrin James primarily play?

What position did Thurman Thomas primarily play? Thurman Thomas is best known for playing with which NFL team? Which college was Thurman Thomas playing for when he entered the NFL? What jersey number did Thurman Thomas wear with the Bills? Edgerrin James is best known for playing with which NFL team? Which college was Edgerrin James playing for when he entered the NFL? What jersey number did Edgerrin James wear with the Colts? What position did Jerome Bettis primarily play?