Can you do AD and OD with MCX from WGM?

A previously reliable source from Apple is telling me that if I want to impose MCX at the user level, I cannot do it by binding my Xserve to the AD domain, since this means it cannot be an OD master. Instead, he is suggesting bind clients to both OD and AD via LDAP in order to get the AD user/account list. Then manage from there. Can anyone corroborate this thinking?