Don is on the call because he is the CEO, plain and simple. He will be able to speak on all points of the company.
Dr. Johnston is more than qualified to be on the call. As I understand it, he has the most knowledge of the geology of the mines and the area as well as the opportunities in the area.
Bob's role is a little unclear to me right now and, of the four people you would expect to be on the call, he would be among the least valuable to have on the call at this point.
Jimmy is a wild card, but I assure you that he will have input into the answers that are going to be provided. Don and Dr. Johnston are likely the most well spoken and will give the best presentation.
Also, it's an opportunity for the share holders to meet Dr. Johnston. We've already heard from Jimmy and will continue to, we don't have any take on Dr. Johnston. My suspicion is that he is much more critical to this operation than we think.
