What position did Michael Irvin primarily play?

What position did Cris Carter primarily play? Cris Carter is best known for playing with which NFL team? Which college was Cris Carter playing for when he entered the NFL? What jersey number did Cris Carter wear with the Vikings? Michael Irvin is best known for playing with which NFL team? Which college was Michael Irvin playing for when he entered the NFL? What jersey number did Michael Irvin wear with the Cowboys? What position did Marvin Harrison primarily play?