The important and obvious missing ingredient is Bagley. Bagley was the key for the second unit and without him they've been a shambles. He was the focal point of that unit, the guy that you could throw it into and command double teams. He's was a force in that second unit.
Giles should the point-center for the second unit. Bogs should become a cutter, not an initiator. If Bogs gets the ball on a cut he's a good enough passer to dish it someone else if the shot isn't there. Right now he's way over his head into being the focal point/point guard of the unit. He even turned down a completely open shot because he's trying to think like a point guard. The other players should follow suit - constantly cutting and moving. Like Christie has said, if they get tired constantly moving and cutting then Joerger should sub them out. Because of the Bagley void it looks like the Kings are running a quasi offense - a little of Bogs initiation, a little of Yogi initiation, a little of Giles initiation. They look like they have no idea who they really are, which is very different from the unit in which Fox plays - they have a fast break identity that complements Fox. That second unit needs to establish their identity, pronto.