I don't see that as a major challenge at all. I think they would be eager to be working cooperatively with the end product of what the implementation steps look like. Being astute professionals, they are going to be eagerly awaiting the outcome. I don't see any obstacles or delays there. In a very smooth transition they would be cooperating strongly with the one point of contact that ultimately comes of this, if I'm understanding your question correctly. I can't speak for them, obviously, but I can't see a problem.
On October 30th, 2014. See this statement in context.