Actually, Wade is known for his defense but whatever.
OKC played an old past their prime Mavs team, followed by an old past their prime Lakers team, followed by an old past their prime Spurs team. They did this while completely healthy. Not exactly a murderers row.
You act like putting interier guys on Bosh is just that simple. For one, Bosh doesn't play in the interior so these guys are going to be guarding out in space where they aren't as comfortable. Secondly, the entire OKC defense is predicated on having shotblockers to protect the rim. If that shotblocker is out at the three point line guarding Bosh, how will that impact the team defense for OKC?
You asked a good question regarding who is guarding Harden. Who is guarding Wade?
Westbrook scares the hell out of me. Durant not so much. Durant is going to get 30 regardless. If I'm Miami I put Bron on Westbrook and keep him out of the lane and force him into bad decisions. I put Battier on Durant and just hope to hold him to between 45 and 50% shooting en route to his 30/game. Wade can guard Harden. Westbrook is the total X factor in this series IMO. He will eat Chalmers alive if he guards him.