Traded multiple picks?

Why do Bobby and Hokie keep saying we traded multiple draft picks for Al Woods? Didn't all we give up was a 6 round pick for him? Sure we gave up a 4th and a 6th but we got a 4th back. The few minutes I was listening to them they made it sound like we gave up half the draft. Obviously you can hit gold with a 6th round pick but doesn't happen too often.