This is probably not a response that answers the specific "what skills do you need help with?" question, but if I may try to explain what I think a most desirable video would be. A professional player in a match, who while wearing a tiny microphone, would record their thoughts as they proceed in the match. So many times have we, as students of the sport, have been left to wonder why a player chose that route, or what possibly could he or she have been thinking. Such a video might relate aspects not only of analytical strategy, but as well the human side of it. How many times have I wondered what a player must feel as he is dominating a match, or conversely sitting in the chair watching it all unfold against him. A video describing those intimations may be more than difficult, but as well might generate a lot of interest.