The problem with that argument is that PG is the best position for all three players. I know there's a school of thought on this board that thinks Dragic is a SG, but I sure don't see it, and if you asked him, I bet he'd give you a nasty look. (Okay, that's his default facial expression, but still.)
The other problem is that there are two true SGs on the roster in Green and Goodwin, one of whom was the team's most consistent wing scorer last season and the other of whom is probably the most talented prospect in the organization. With the three "combo guards" presumably taking nearly all of the 96 backcourt minutes per game, the only way for Green or Goodwin to see time is to play up at SF or hope that someone gets hurt.
And never mind the fact that putting Green at SF creates a logjam with the three other SFs needing time (McMorris, Tucker, Warren).
The only solution is small ball, severe small ball, and lots of it. Which will be cute and put a lot of points on the board, but be hopeless in the playoffs. In other words, the same problem that I could have sworn most of us were sick to death of.