Minor League Football. The Junior Varsity so to speak

College should be a place of Higher Learning.  We should put together a minor league system for the NFL.

Peruse through these posts:
Minor League Football. The Better Idea?
Let's say 32 Minor League Football Teams

Minor League Football Affiliations and Brands
Minor League Football Affiliations and Brands. Part II 

UFL and Arena Football filling a Void?
 Arena football has teams in Portland and Orlando unlike the NFL.
Bolder CFL Expansion