Sentence:  Sandy Weill was the man who stitched Citigroup together in the 1990s and in the process helped bury the Glass-Steagall act, a Depression-era law separating retail and investment banking. Last month he performed a perfect <WSD>pivot</WSD>: he now wants regulators to undo his previous work. 
Meaning of the word marked with <WSD> tags:  Act of turning on one foot.