Well before everyone that piles on with the fact that they're at least not far apart and the additional assets huge in trading for Irving, let's at least recognize the hardest step is going from very good to great, and kudos for being impatient and willing to risk it for no real reason.
Swap point guards and force our youth out too soon, and we still go down 4-1 to Cleveland after a good season. And no chance against GS. We wouldn't get much better if at all trading one offensive minded all star PG for another. So ride the horse we got. No moves just to make a move.
If Smart + Crowder & picks brings star talent at PF, then there's something interesting.