looking at these highlights murray does not read coverages well.
murray gets two on ball screens the first one at 2:22. does not preliminarily space his defender prior to coming off the pick to stretch out the passing window to his big and open the floor up more which would have looked like this.
as result dribbles into congestion with poetl attempting to roll but not having the spacing for it. that is not poetl's fault. goes 1v1 and throws the ball away.
if he initially requests a higher pick from his big he could have had more space to operate with and if he pulls out the defender prior to coming off the pick poetl gets a bigger passing window to receive the basketball than he was given. did not read the defense well here.
the other on ball screen is later on in the video.
curls around aldrige with the defender on this hip. passes up the best shot in basketball after the lay up, the foul line pull up, and hits aldrige late without drawing his defender away from him first forcing him to go 1v1. if he hits aldrige earlier it lets him catch it in stride and in rhythm to the basket which would have looked like this.
needs to work on reading coverages, opening up his passing windows, and making the foul line pull up the defense is going to give him. if these highlights are indicative of the entire season it means he is not working off screens a lot which means he has been trying to score on his own a lot. there is your problem.