well, I like PGs who go for the shot when they are left open.
If my opponent's coach is stupid enough to tell his players my PG is only for passing the ball, and thus can play double defense on my other players, then my PG is free to go for it himself.
Last few games I played my SG at PG. He simply has his PG skills as high as my regular PG, and his JS is way up high. As expected he did shoot a lot, and he also scored most points. Should I have put him at SG, it would probably be the same, except that now, I had an other scoring machine extra in the game on my SG position.
It's all about what you want you players to do.
I also somethimes play with 3 centers when I play inside offense. It didn't make me look bad.
They are not your friends; they dispise you. I am the only one you can count on. Trust me.