How do you figure? Yes, a guy doing that is possible, but when is it ever going to happen? The reality is that FG% is a
universal indicator of efficiency. Sure, there are others but a guy who isn't shooting well but has a lot of free throw shots isn't going to be perfect from the line, and all his bad shooting is killing the efficiency of the team. Bad shots taken are bad shots. I think Westbrook's efficiency numbers display that. Imagine if a guy like Iverson had actually taken good shots rather than chucking everything he could. He definitely wouldn't have had to have relied on Larry Brown for success.
Having said that, I do agree that there are a lot of indicators.