It’s now up over at Grantland:
Making whichever choice this unblocked defender makes the wrong one is read option 101. It’s an idea that’s been around for more than a decade. When fully realized, San Francisco’s read option goes far beyond those basics, to places college teams haven’t even been. “We’ve gone down our own road and we do what we do, not just traditional things other teams have done,” remarked Roman this week. “We’ve taken it and are going down our own path.”
Most significantly, on many of the 49ers’ read plays, it’s not just the quarterback who is reading the defender. A lead blocker is often doing the same.
Fullback Bruce Miller isn’t given every option on every play, but generally, there are three possibilities as the lead blocker on these plays: (1) If the end crashes down for the running back, Miller’s job is to feign blocking him and arc around to seal any linebacker scraping for the quarterback; (2) if the end stays home but slides inside, Miller can block him, opening a crease for Gore to slip through; or (3) if the end goes for the quarterback, then Miller slips inside of him and blocks the nearest linebacker.
Read the whole thing. Also, as a bonus, I had originally intended to describe the 49ers’ use of the Inverted Veer in the NFC Championship game but didn’t end up having a chance. Below the jump are some bonus diagrams.