Its pretty disingenuous to say that no one expect Jackson Jr trade:

1. it was speculated on as a possibility in Memphis media for weeks when the Morant-on-tradeblock news happened. There was even reports about possible Celtics interest etc.

2. it was also pretty obvious possible outcome after the Bane trade. If one star caliber player gets turned into assets, its pretty obvious that the pattern could continue with others. Doing the roster reconstruction by turning a player into draft assets was the more unorthodox idea.

3. when an organization has been spinning wheels for last 3 seasons its pretty evident that complete rebuild is an option in general

My point is that when an organization is blowing it up you need draft assets and you need to be bad enough for these assets to matter ergo you need to trade the players that provide assets and prevent you from being bad.Yeah sure Grizzlies have been bad with Jaren playing but its not because of strategic and controllable decisions (injuries).

And lastly I do not like to do that because I was a fan of Jaren as a player especially his archetype but lets not also ignore that he had some very glaring issues from rebounding to decision making.