Miles was always going to get paid his old salary out of Portland’s (deep, Microsoft-y Paul Allen) pockets. But by having a doctor declare him a medical retiree, it triggered a clause whereby the money would not count against the salary cap. But DMiles doesn’t agree with the doctor who says he can’t play, so he goes and works out for other teams. His Boston contract is for the min, and is contingent on him making the team. If he makes the team and appears in 10 games (over a couple of seasons I think), then the NBA says “Sorry Portland, your doctor lied, he wasn’t a medical retiree, so he counts on your cap.”