Am I a top manager that gets paid millions a year? Fact of the matter is that they need to do something big to turn that ship around and I don't see them doing any such thing. Getting some fresh new blood at the top would be a good start though.
You made a claim that they aren't doing anything to change the situation of the Wii U. Last time i checked pipelinging big titles, a better marketing effort, partnering with other companies and developing a fresh new ip from a younger team was doing something, it certainly sounds like they are making an effort. Sure, the wii u is not get a turn around, but you cannot serously accuse nintendo for not trying.