You might rely on one person in the club then it comes to technical literacy or the preparation of the room. That is absolutely fine for the majority of the time. Unfortunately, during the contest session this organization strategies might cause issues. If the person who knows the ins and outs of the technic is the contestant, this person won’t be able to support you in the organization. So think about the Toastmasters spirit and give the most possible knowledge not only to one person and relay on that person alone.