First of all, Nintendo should purchase some online-savvy tech company. Seriously, half of their problems these past few years can be connected to below-average online services. More than any single comparable game studio, what Nintendo could really use is some people to improve Nintendo Network.
This could hopefully result in:
- Miiverse being improved
- Better online play
- More/better online services like PokeBank
- Faster download times for games and updates
- More efficent operating systems
It wouldn't even have to be a huge company! A small, experienced firm of 50 people could work wonders without pushing Nintendo's budget.







