Originally Posted by infantrycak
... Joe Pendry was brought in to coach the interior linemen. He and the other O-line coaches decided with Capers that zone blocking would get the potential from the athletic linemen on the roster and hopefully allow them not only to open holes but make blocks at the second level. When the original announcement was made that was the main selling point along with the comparison to Denver and their ability to get a whole bunch of RB's to produce. It was then noted that DD's patience, decisiveness and burst to the hole would play along well in that system. Hollings' acceleration should also play well in the system.
Good explanation, but I would add a point. While we most often mention Denver, I believe the Ravens also employ a zone blocking O-line (generally), with tremendous success. Also, on defense I believe the number of teams playing 3-4 has increased, with more teams saying they will imploy the 3-4 some of the time (the Raiders and C'boys, I believe). With a variable front (4-3 shifting to 3-4), it might be easier for O-linemen to pick up their assignments.
I hope someone with more understanding of O-line play than me will comment on the point that the fluid assignments of a zone blocking scheme help when faced with a shifting defensive front.