I think it also has to do with our lack of spacing since the SFs on the other team are helping on him hard when he penetrates, not allowing him to get to the basket. At least when Fields played, he moved off the ball and forced his man to go with him through the lane. Mcguire just stands on the outside and does fuck all. He should just move to the other side of the court that the ball isnt on everytime hes on the court.
Ideally, he should just go sit his ass on the bench and have Ross sub in for him. I hate how Casey continues to play 4 on 5 to start the 1st and 3rd despite Mcguire giving us 0 on the defensive end as well. Its horrible to watch.