I dont think so, He has some good fights under his belt, against Maskaev, Tua, Sanders and Lewis. its just that after the first Lewis bout, going into the rematch he and his trainer were at odds with each other, and as a result neither guy spoke to each other the last 2 weeks of training.
Tyson had 4 versions/career imo Career A - Prime Tyson until the Ruddock fights before prison Career B - 1995 Post Prison, Mcneely, Mathis Jr, Bruno, Seldon, x2 Holyfield ear biting incident Career C - 1999 Coming back form suspension, Botha, Norris, Savarese, Golota, Nielsen, and then Lewis Career D - 2003 Etienne, Williams, and his retirement fight with McBride The Career A and B version destroys Rahman in less than 5 rounds Career C can still give Rahman problems and Mike can still probably win it Career D will lose to a prime Rahman