I heard Jackie on the radio a little while ago talking about some of the stuff in that article. The impression I got from her regarding the Rondo/Ray rift was that there really isn't anything specific to it other than her personal opinion that Ray no longer works for this team. She's really high on the Rondo/Bradley combination, and I think that she thinks Allen will just get in the way of that developing.
There was nothing concrete, but I do think that what she says makes some sense. I guess we'll see if Ray comes back or not, but, personally, I'm not counting on it.