You're asking him to be completely selfish, which, in reality, this current team probably needs him to be. But he's much more of an unselfish team player that looks to get others involved first. And that's far from a bad thing, especially once there's a better team around him.
But I'm just not sure it's in his nature to try to be that way. But perhaps he's starting to learn to be.
I look at it slightly differently.
When he starts the game aggressively (being selfish, so to speak), it helps establish a tone for the team and himself, gives him a few easy shots at the rim which may help him feel more general to use his outside shot and in general sets the stage for having more room to maneuver and distributing the ball.
In other words, Fox being "selfish" early on helps him being "unselfish"as the game progresses. That's the Fox I enjoy seeing most, because I also feel that when he comes in engaged on offense and scoring, it carries over to his defense as well as the rest of the guys on the floor.