They need BETTER games. And the need to do a better job leveraging the hardware.
Some of the titles out so far (yes, I'm looking at you Zombie U) are just ****ing awful.
And the seemingly cobbled together support (in most games) for the gamepad screen and other "selling points" are shameful.
Sure, there's a couple of GREAT games but overall the Wii U experience has been thoroughly underwhelming.