I wasn't referring to Jimmy Giuffre. Buell Neidlinger did a lot of studio work in L.A. to make a living. His choice.
And I think that if you listen to Cecil's early work, you'll find that he was quite capable of playing with musicians like Giuffre (or Cranshaw). I imagine that Cranshaw's comment resulted from the CecilTaylor/Mary Lou Williams concert. According to an interview with Cecil, there was a lot going on behind the scenes there. Mary Lou brought in Bob Cranshaw and Mickey Roker at the last minute. Cecil was annoyed, especially with the presence of Roker. (Cecil felt that if Mary Lou wanted a drummer, she could have brought in Andrew Cyrille, who had played with her.) And that was the end of any collaboration. She played her thing and Cecil played his.