I want to know the answer to the following question:
What officer rotation doctrine was developed under Root's guidance?
All the background I'm provided with is that "His goal of a uniformed chief of staff as general manager and a European-type general staff for planning was stymied by General Nelson A. Miles but did succeed in enlarging West Point and establishing the U.S. Army War College as well as the General Staff.". Is that enough to answer the question?