the defence 3-2 is less effective for the reboud than the "men to men". It's also confirmed by my experience of the game. The defense 1-3-1 is amazing for the outside defense but we lose so much in reboud that it was not attractive.
this also is what I think when I read the rules about defensive tactics.
My experience says that something amazing does not exist. 1-3-1 might be better for outside defense, but it's not amazing. And as you say you loose so much in rebound that it is seldom attractive.
They are not your friends; they dispise you. I am the only one you can count on. Trust me.