The Mavs do this because they trade grant and Holmes with a protected first for Wiggins who could be their missing piece to the starting 5, for the bulls they want 2 first for Caruso and that’s what they get, for the magic I think grant is better for them because he’s a better shooter and isn’t injured all the time they also add 2 seconds, for the warriors they fix their defense which currently is bottom ten but add Issac and Caruso would easily make it top 10