CelticsLife's Mark Allison broached the idea of Gordon Hayward at point guard for the Celtics in 2017, and I am bringing it up again. Gordon's floor time has hovered in the mid-20's most of the season, and that should increase to the high-20's or low-30's. And if he is to remain on the second unit, putting the ball in his hands to run the offense is worth a serious try.
With Hayward-as-facilitator, you won't see Kyrie Irving-like, jackhammer dribbling or Pete Maravich-type sleight-of-hand passing, but you will see a clever, skilled and unselfish distributor making great decisions with the ball.