Obviously the first thing they should do is demand from their current head of advertisement or whoever has been in charge of the current media pushes over the last several years why they should keep their job.
Seriously, while we all know Nintendo doesn't have the resources or clout to get major ad time space like Microsoft or Sony can, what they have been doing television wise and with just general exposure has been crap for every game not featuring Mario. It seems only word of mouth carries their better games to other people's lips and pushes sales because Nintendo has stopped trying to do it themselves outside limited live demonstrations, online videos and other fairly inexpensive routes.
I'm not asking for a Destiny or Halo level media blitz for just one game but if Nintendo really wants to move more units, they have a wealth of games coming out within the next few months for the Wii U and should be trying to push those as the clear alternative to your standard FPS, Madden and Assassin Creed heavy holiday schedule their competition is pushing.
Its about games, yes but you have to let the people know the games exist as well and more importantly BUILD the platform brand and not just try banking on past success to carry you.







