Jalen's trade proposals are pretty terrible. In the Spurs trade, the Celtics would just be giving away KG. I'd rather watch KG play in green until he retires.
As for the Indiana deal, I don't see why Indiana would trade their star forward for a 1-2 year rental on a declining Paul Pierce.
I have yet to see the talking heads offer a deal that makes any sense. Unless the Celtics get a lottery pick for each player, there really isn't anything out there that makes more sense than just keeping these 2 players for another year and 3 months.