Rob Portman's move from USTR to Office of Management and Budget looks like a recognition by the Administration that it's unlikely to see significant additional progress in the Doha Round. (Changes raise doubts on US commitment to Doha , Alan Beattie, Financial Times, April 18). At the same time, his move makes further progress less likely.
Portman is to be replaced by his deputy, Susan Schwab: (Schwab’s nomination a signal of continuity, Alexander Kliment , Financial Times, April 18, 2006).
Schwab may be very capable. But turnover, and the associated reorganization, can't be good at this point. Moreover, she will lack Portman's stature with foreign negotiators and Congress. This quote from Kliment says a lot: