Reasoning:

Lakers - This trade improves the defence significantly by adding to great defenders. Jrue can either start along Luka or come of the bench. Mattise can be a bench defender who’s improved from 3.

Blazers - Now that Dame is back the blazers might as well sell jrue and let their younger guards get more minutes to develop. Rui is a good player who fits well and can play for them for a while (if resigned)

Nets - take on expiring salary to get pick