Tsvangerai is insisting on real executive power as prime minister, which makes sense, as he won the election, but this is a major sticking point, which is why the SADC summit ended without a deal.
So the SADC is pressuring Tsvangerai to cut a deal with Mugabe that does not involve real power for the MDC, with the threat that the splinter MDC-Mutambara would ally with the ZANU-PF in parliament otherwise, which indicates to me that the SADC, or some of the members of the SADC, don’t really care about the quality of governance in Zimbabwe, they just want the problem to go away.