"Well, the difference in working with the Supremes and the other girl groups like Martha and the Vandellas, and the Marvelettes, you let the material dictate to you, uh, really, how you worked with the group, and with the talent, and the personalities. All of these things was instrumental in having all of the groups, uh, retain their own identity. Uh, and, and the material had a lot to do with it, you know."