What position did Lester Hayes primarily play?

What position did Jack Ham primarily play? Jack Ham is best known for playing with which NFL team? Which college was Jack Ham playing for when he entered the NFL? What jersey number did Jack Ham wear with the Steelers? Lester Hayes is best known for playing with which NFL team? Which college was Lester Hayes playing for when he entered the NFL? What jersey number did Lester Hayes wear with the Raiders? What position did Mike Webster primarily play?