depends on your player's handling skills, and probably also their outside skills.
You need not worry about their stamina, it's more than good enough for FCP.
I succesfully player a full court press last cupgame, and my players have stamina ranging from weak (3) to average (6). My starting PG was weak in stamina.
I did change a bette player who had pitiful handling for a less good player who had average handling though, and I must say I was pleased with the result.
They are not your friends; they dispise you. I am the only one you can count on. Trust me.