Which college was Brock Purdy playing for when he entered the NFL?

What position did Matthew Stafford primarily play? Which college was Matthew Stafford playing for when he entered the NFL? What position did Brock Purdy primarily play? Brock Purdy is best known for playing with which NFL team? What jersey number did Brock Purdy wear with the 49ers? What position did Jared Goff primarily play? Which college was Jared Goff playing for when he entered the NFL? What position did Trevor Lawrence primarily play?