Have you been watching? Ibaka hasn't done dick besides hit jumpers. Diaw can go at Kanter and Kanter doesn't have moves to get past Diaw if you bounce him out of the post. It's really been Adams as the difference maker. He was my biggest fear. He has learned what he can and cannot get away with for the most part. As chippy and "cheatie" as he is - I have no doubt he intentionally tripped Danny Green - I find myself really liking him on and off the court. As I have said, he's a throwback, Rick Mahorn style.
So, from my observation, the key is Duncan playing like he did in game 5 - and making the bunnies he missed so they are and ones - and Diaw. Diaw was a no show in Game 5 and he was really good in Game 4. Diaw can take both Kanter and Ibaka, as he has shown and can defend both too as both are not bulls. Kanter is getting boards on Adams clear outs (taking two defenders on a dance through the lane) and the help defense on Durant/Westbrook leaves the backdoor open. They need to pull the guy on Robertson down to the rim on the shot. The Game 4 alley oops to Robertson has kept that defender too honest. Leave him, guard the baseline on thee oop and run at Kanter on the shot.