You make an excellent point here, and I agree with you. I do think that it will be very important for the sponsor's to ensure that the person they select to be their representative be actually knowledgeable on the topic at hand. I don't think that I as a developer here will be able to enforce that, and I'm not even sure that the sales people and executives can really force potential sponsor's to provide a liaison who is really an expert. That having been said, as I believe your comment bares out, sponsor's who do not provide a high quality liaison to the discussion will likely feel the effects rather quickly.
To be up front: we probably will not have everything squared away and perfect the first time, but if this concept does get some traction, we should get better over time, and its these types of frank conveersations between our readers and our staff (both editorial and engineering) that will help us get there.