Walmart's Answer To "A Better Pizza Box"

In July I wrote about designing a better pizza box, and it seems Walmart has their answer. In a short article and video on FastCompany.com yesterday, Walmart is "closing the loop" on their cardboard deli pizza boxes by using their old cardboard waste to create these new boxes. This solution does keep many hundreds of thousands of cardboard boxes from ending up in landfills, but could they have gone further? Perhaps they could have set up an in-store take back program and simply reused these cardboard boxes again without having to produce new boxes.