Pash rushers have really evolved over the last 15 years and have become a cornerstone of a defense. Look at teams like the 49ers that put a priority on drafting top d-lineman. These players are almost like a new position like the article says. Most positions in football have evolved and taken on new characteristics in this new era. Pass-catching RBs, mobile QBs, receiving TEs, ground covering LBs, etc. What I think is lacking, and going by sack numbers and QB injuries, is an evolution of the o-line. With committee RBs and an emphasis on the passing game, the O-line, as a group, feels a bit antiquated. Especially against these super-human pass rushers and speedy defenders. I don't know what a new-era O-Lineman looks like or what that evolution could be, but I think there needs to be a new way of how the o-line is built and developed.