It's more a matter of chemistry. Especially with a team with this many quality moving parts. Sometimes too much of one thing isn't good. Too many players that need the ball in their hands sometimes don't' mesh well.
I like the aggressive attitude of this starting five, I like how this team can throw waves of good players at an opposing team off the bench too.
IMO Brown need time watching the game from the bench until he figures a way to let the game come to him, and stop trying to force a square peg into a round hole. Hayward needs more time to physically gain his full confidence.
In certain instances, like an injury, I can see either returning to the starting line up.