If you haven’t already, there’s a story below (and corresponding video) worth a quick read where Poles explains the ‘why’s’ of trading Quinn. He discusses the business side, the faith he has in his remaining leadership (to help keep the locker room focused - including Roquan) and the personal considerations that needed to be thought about. At the end of the day he doesn’t owe anyone an explanation (frankly speaking we saw he did good) but he gets props from me, as a fan, for doing so. And one other takeaway, it appears Asst GM Cunningham was heavily involved in the negotiations given his background with the Eagles.
https://www.bleachernation.com/bears/2022/10/27/ryan-poles-explains-why-he-traded-robert-quinn/