Offensively, all three guys are gamebreakingly fast. On defense, Davion would handle the point of attack. Fox has always tended to defend bigger players better than he'd defend other guards. Ivey is a mystery on that end.
Mike Brown transitioned the Warriors into a Box & 1 team by the end of the playoffs. That could be a good way to counteract a lot of our size issues with those three on the floor at the same time.