He did what most guys do. They get signed for pre-season or camp depth, and then released a few weeks later. I'm sure most guys could do that for a while but get sick of it and move on. Mitch Mathews did it for one year less than Anderson. Jordan Leslie did it. The list goes on and on.
Stop talking about it like it's an accomplishment. That's not getting guys to the pros. Nobody cares about it. Even guys who stick and become starters, like Sorensen and Davis, they were still undrafted so people still care a LOT less than about draft picks.
It's a complete joke to use 2-week practice squad guys to claim a school "gets guys to the NFL." No man, sorry, but they don't.