I think that has to be 89 as that's Greg Mark, Willis Pegues, Maryland and Tez. Mark, Tez and Pegues graduated after that title season
BTW, that 89 Dline I thought was the best in Miami history in terms of performance. Ive never seen a front that got off the ball so quickly and could establish the point of attack the way they could. They literally set up shot in opponents backfields