That I would be able to say once I have access to the players. As it stands I don't know the stats so I can't say where we need reinforcements. I could start guessing from the stats in previous games, but that's just guessing, a lot has to do with the way the game was set up.
How will I work with them? I am not sure I get the question completely... I will encourage the owners to train the players with as high coach as possible and maybe suggest the areas that they would benefit from being trained in. However... I strongly believe that the training regime is up to the owner himself/herself. I would not impose a certain training regime on players or they are out, for example. As long as they are being trained in skills that are relevant for their position it's good. Also, if new players show up with better stats, they will most probable take the veterans' spots.
As for the third question I'll leave that with the BB, I don't do strategies for enhancing the customer base for a commercial application. Yes, BB is free, but it's there because it is a business. And campaigns for increasing player base are their responsibility really not NT coach's.