I worked opposite her for a few weeks at Jimmy Weston's in Manhattan around 1974 or 1975. iirc Rudy Collins was her regular drummer and Arvell Shaw was playing bass. Subbing was commonplace and one night the drummer was a very famous and very wonderful drummer (an elder statesman still with us) whose name I don't want to mention because this might be an undeserved embarrassment. He sounded wonderful. For no apparent reason Dorothy paid him off and fired him after the first set and called in another (not quite as) prominent drummer, also a great player but NOT like the first guy. I still wonder wtf was she thinking?