Thanks. Good explanation.It's not that PP's contract has a poison pill. All rookie scale extensions are governed by a provision that sometimes make it more difficult to trade the player. The rule, specifically, is this: "While rookie-scale extensions don’t include a trade restriction, they come with a poison pill. If Garland were traded, the Cavaliers would be credited with sending out his current salary for 2022-23 ($8.9 million), but an incoming team would need to account for his average salary over the life of the entire contract ($33.9 million). " So BOS would be sending out PP's $4+M salary (this year) but the incoming team would be counted as getting $7.5M. Obviously not that big of a deal with PP but with some other rookie contracts, that's a huge deal.
https://www.sportsbusinessclassroom.com/who-can-be-traded-and-when-after-an-extension/
With so many salaries getting shuffled in a Bulls rebuild I imagine that a $2-3MM uptick would be negligible. Something like the Garland example would take some CAP gymnastics
I'm guessing the PP extension would be seen as a positive asset.