Rye vs oats vs winter wheat

So what are you planting in the fall to prepare for your buckwheat, sunflower, and millet fields?
Cereals, clovers, and stuff like that. I have no problem taking out a crop before maturity to put in a new crop. I also leave some of those cereals and clovers to mature and do their thing (spend the summer making grain and tonnage).

To summarize and avoid confusion; Some of the wheat and clover I plant this fall will not get touched until next fall. That clover, chicory, and wheat will grow untouched by me. Some of the same stuff will be terminated in the spring to make thatch for summer plots.