I know we shouldn't be looking that far ahead, or are we? he is 72 years old and who know's when he just call it quits. could be next year even. So are we ready for life after one of the greatest Defensive coordinators of all time. Who should be his predesseor? Since defense is the cornerstone of the steelers organiztion for as long as I can remember. Who would be the best canidate to replace lebeau after he retires?