I think a Garrett type would be P5 now. A guy who can give them 5-10 minutes a game as an extra big. Be a force on D. Block shots. Pick up a few fouls and not be worried about foul trouble.
Now, a guy not quite as good as Garrett who can play some D and block some shots? Sure, maybe we can find that type of player, but we are not getting a Garrett clone who averaged about 5 blocks per 40 minutes.