I point that out a little bit when I refer to agencies being discouraged from sharing information. The CIA may be worried about losing HUMINT data to the NSA for example. You may be referring to them worrying about compartmentalizing the information away from the president as well which you are right happens to some extent now but shouldn't 'in theory'. Maybe it's a don't ask don't tell. I think Cheney blew the cover of an intel asset though.