M and C were still involved with quite a bit of the background work in 68. by no means all. and many songs had them and the As. so that's why i think, had they been around, both M and C [[plus the As) would have been on Love Child.

i don't think it was a malicious decision from gordy to say "starting today - no more M and C. I want people to only know Diana's voice." he had already decreed Diana was lead singer and by mid60s, they were barely using F or M on any lead material. That escalated in the DRATS era. but it wasn't so much that they DIDN'T want M and C in backgrounds. i think they were just indifferent about. sort of a "who cares - grab whomever is around and just get the backings done"