Would you trade up to get the 1 or 2? I would have to think about trading Smart, Bradley, and the #3 (or worse) and another year's first to get Simmons or Ingram. Seems like a fair trade to me, considering how both Smart and Bradley have improved. Going forward they are both starters on ok teams and at a minimum very good bench players for a championship team.
We have a ton of picks to sweeten the deal, and both the Lakers/Sixers are lacking NBA talent. While I think both Simmons and Ingram will be good players, I'm not certain that they will be all-NBA (ie untradeable). I think the poor man's Lebron/KD tags fit for these guys, so they certainly aren't the best prospects in years (I think Wiggins was a better prospect than both), but they could help the Celtics consolidate their roster with talent upgrades. Note- If I thought they would be better players, there's no way I would think that the first two teams trade out of their spot....