With the Lakers looking at Marcus smart and Marcus smart being able to be traded today because of his contract extension, in this trade the Lakers get Al Horford and Marcus smart. In return the Celtics get Russell Westbrook and a future first round pick. This helps the Celtics because they want to be active in the trade deadline saying their team is not working right now so Westbrook changes that and Westbrook fits with Jayson Tatum and Jaylen Brown shooting. This helps the Lakers with a defensive point guard and the veteran big man they also have Marcus smart for a five-year contract so he will be around for a while.