The Knicks have asked for #3, Bkn '18, Jaylen Brown, and Jae Crowder in return for Porzingas.
I'd actually do that trade. Essentially I think if you weigh the odds of Danny drafting one player of Porzingas' quality with a high lottery pick, you'll determine it to be less than 1/3 - so the math actually works in the Celtics' favor in that regard.
But then again, I don't have any faith that Ainge is able to differentiate between top talent. I feel he all but admitted this by making the unheard of move of trading out of the #1 spot this year. Some people think Ainge is a great drafter and will hope he holds onto these picks (despite the fact that he won't have roster space for all of them).
I think he's good at drafting late in drafts and identifying NBA role-players that are being underutilized. Jae Crowder is the type of guy Danny will find in a trade for peanuts every year or can identify in the draft.