This is a really good article, discussing the evolution of the OW. It's interesting that WR/TE are being blurred, and now WR/RB/QB are being blurred. I found it funny that the Jags wanted to list Robinson as an OW in their media guide, and the NFL said "please don't". This article isn't earth shattering, but talks about the evolution, why, and how coaches are creating matchups. Good Gifs of plays, as well.
http://www.sbnation.com/nfl/20...-austin-randall-cobb