Re: what type of offense do you run in a pick up game?
I think I understand a little bit better now, thanks for the response.
It sounds like screening seems unfair or almost unsportsmanlike because the people you play with aren't certain how to beat it and it seems unnatural. Teamwork trumps 1-on-1 play almost every time in basketball.
FWIW, playing a zone is okay in a pickup game. It's actually harder to get a zone defense to work correctly without teamwork as there's a lot of rotation required.