Per source, there are multiple teams in the lottery who feel De'Aaron Fox - not Fultz or Ball - is the top PG in the draft. Continues 2 rise
Lucky for us, Fultz is also a SG.
Don't kid yourself, he's not a SG.
There's only one ball, and you want it in the hands of your most effective offensive player as much as you can. Either Fultz pans out and he'll be the lead guard, or he doesn't, and this point is moot, anyway.
It doesn't matter that he'll probably play quite a bit of SG for the first few years of his career, what matters is how he projects in a best-case scenario, and that is with the ball in his hands.