Suns do this trade so they get off of long term money so they can make a singing or trade in the offseason and they get 4 2nd round picks to help this retool/rebuild phase where they need picks bad and Williams helps this year where the suns have been a sleeper team and a good defensive team and Williams will just help with that more while khaman develops and the blazers do it bc they need shooting really bad they are ranked the worst 3 point shooting team in the league while Allen is one of the best catch and shooters in the league from 3