Last Friday's USDA reports have clearly removed the soybean and oilseeds markets from the leadership position -- at least for now. The big soybean production increases have lessened the level of demand rationing required, even though ending supply forecasts are little changed from 60 days ago. An improving weather pattern in Argentina and Brazil also has taken the edge off of the soy complex. U.S. and world feed grains supplies will still be at record-small levels by the end of next summer, but the market relegated corn to a back row seat a couple of months ago. Wheat entered the new marketing year with bearish expectations. Early world wheat production estimates were very high. Black Sea wheat was offered at very cheap levels throughout...