Whoever taught George Hill and Bledsoe on how to defend Harden is a wise man.
Prevent the three's. Keep defending the left side of him to prevent him from shooting outside. Force him to the right and let him do a floater for a 2 point which could also miss or pass the ball to Capella. (if he cannot pass it to Capella, 50% chance for a steal) happened a lot of times.
Trust the big man to do his job. (center)
Just do not give him space to make a three point shot.
2 things happened.
Bledsoe forgot to defend Harden on the left side. He stayed in front and so Harden made a three.
Hill stayed on the left side, Harden forced a three and it was an air ball.
Hail to the defensive brain of the Bucks.
Also for Hill for not forgetting the strategy in every play.
If you would go around Youtube, you will see Scottie Pippen, being asked how he will defend James Harden, he said exactly like what we have witnessed in that game, cut his left, force him to go right double-team him and force him to pass or shoot the ball, chances are he might miss a few or the pass can be stolen, simply as that. Scottie is a first-defensive-team, 8 times and 2 second-defensive-team 2 times. So he really know how to play defense here. Maybe the Bucks defensive team have seen that interview and put it into play when they face Houston yesterday and it was very effective indeed.