Keep in mind, it's not up to PG where the Pacers trade him. They aren't just going to trade him to the Lakers because that's where he wants to go.
If Ainge were to trade for him, it's harder for a guy to leave a winning organization and sign for the same amount of money to go to a losing situation....in the West. He's never getting to the Finals in the West. If PG signs in Boston he will be in the playoffs next year (maybe Finals) and then turn around and tell everyone he's going to the Lakers...I don't think so.
Ainge should be leery of the Cavs offering Love. The question is how long will Bron be in Cleveland.
Offer AB, KO, Crowder and a future pick. If PG signs extension, they add the Lakers 2018 #1. If PG doesn't sign extension, that pick becomes a 2nd round pick.