Lefty isn't a liability per se. But our top 6, 7 if you include Prey, can switch and guard anyone on the floor. Lefty cannot, and it creates a potential mismatch on switches in an otherwise airtight defense.I agree with your comments about Prey. I disagree with your comment about Lefty. I haven't seen Lefty as the defensive liability you described. I do see Sim as a defensive liability on occasions because he has a tendency to play defense with his hands like the two quick fouls called a couple of games ago within 32 seconds. Same type of fouls. I've also noticed that Sim has a tendency to guard his man in the back court very tightly. When this occurs, Sim's man pulls a spin move that beats Sim resulting in Sim chasing his man downcourt which results in a defensive imbalance in the front court.