Harden is going to need that fat contract to pay for flopping fines. Martin is a solid shooter when he isn't injured. And it's not like OKC is losing a defensive player in the deal.
OKC's issue is passing the ball. Operation Russel attack the basket, pull up for a jumper on a break, or ISO Durant didn't cut it against Miami. They have to make a serious commitment to swinging the ball around, getting players open and stretching defenses. And on the defensive side, the further maturing/development of Ibaka is critical. Same with Durant and his lazy reach around defense.
OKC's issue is passing the ball. Operation Russel attack the basket, pull up for a jumper on a break, or ISO Durant didn't cut it against Miami. They have to make a serious commitment to swinging the ball around, getting players open and stretching defenses. And on the defensive side, the further maturing/development of Ibaka is critical. Same with Durant and his lazy reach around defense.