My football knowledge isn't the greatest, chris, so maybe you and bshirt can explain to me all the different OL schemes we had installed in 2010, and in 2011.
Or how spread, pistol, diamond formations involves fundamentally different OL techniques.
'SkersRule, I agree with that.
The offensive formation really doesn't have a whole lot to do with blocking schemes of the interior OL. What determines the blocking scheme of the OL is the alignment of the defense. To give a rather rudimentary example an offense is in 21 personnel 2 RB and 1 TE in a I-right set and the play is iso right against a 3-4. On this play the left tackle may block the DE, he might combo with the LG on the DE and then scrape to the next level to block either the LOLB or LILB. That's assuming of course that the defensive alignment is essentially a base set. Same offensive formation, personnel and play against a 4-3 the left OT may have to wall or seal off the backside DE or Will LB. He might even combo with the LG to block the DT and then scrape to the next level to pick up either the Mike or Will LB. This is of course assuming the defense plays base and doesn't blitz or stunt. Iso right out of 21 personnel and I-right set blocking schemes can also change if the defense shifts or slant the line, or move to an over set. If the defense blitzes that can change who blocks who drastically.
Edit: Interms of your question about OL schemes Nebraska installed in 2010 I don't know all the specifics but I do remember one change that Barney made was making the OL's first step up the field rather than lateral.
Thanks -- this was very good.
The point I am trying to make -- and I think your insight supports it -- is that I see no evidence of any claims that our offensive schemes the past few years required the implementation of multiple distinct OL schemes, causing too much to be on the plate for those guys and resulting in (I guess??? our disastrous rushing output???).
If there is any criticism to be made for the *scope* of our offense the past two years, it should be that it was far too limited. And that can't be helped really, with a young QB who is really growing on the job.
Blocking primer for non big/ugly types. Fell free to tell me why you think it's wrong...
The difference is pretty big in change of technique and that is where the trouble comes in. If I recall correctly 2009 had an emphasis on a zone-blocking scheme, 2010 a spread scheme, 2011 a spread/power scheme.
In a zone scheme people move laterally and make sure that someone is blocked when they come into their area but still power based. Watching Michigan do this with Jake Long a few years back was thing of beauty. Usually single back with 1 or 2 tight ends where the back waits for a hole to open up.
A spread scheme tries to match up, win man to man, or just hold out until they can get they ball away. Much more finesse than power. Again, lots of lateral movement but much more emphasis on beating your man individually rather than the natural double teams that a zone scheme creates. Emphasis on double teaming a d-linemen while you can before going to get a linebacker. God only knows what the personnel will be. Usually something like single back and 1 or 0 tight ends.
Pass blocking for a spread will emphasize getting into your man quickly and keep him from getting his arms up even if you give ground faster. Bull rushers will cause the biggest problems here.
A power scheme is basically having more bodies at the point of attack. The emphasis is striking quickly and catching the defense in a bad position so it is less of an issue if your man beats you. Emphasis on driving the d-line into the linebackers to clog their lanes. Besides pulling, little to no lateral movement, just go. Double team wherever possible. Usually a 2 back set but many teams try to run power from a spread look now-a-days with mixed results.
Pass blocking for a power scheme will focus on maintaining space with the d-lineman while giving ground slowly as the routes tend to take longer. Speed rushers will cause the biggest problems here.
These are entirely different blocking philosophies that each have strengths and weaknesses. But figuring out who you are supposed to block, how to get there, when you are actually supposed to be there, what position you should be in when you get there, and trying to do it all when you are already blocking someone else is not easy. Mastering each one takes years and changing every year can be just as bad for a lineman as anyone else.
Unfortunately, the O-line scheme is tied to the overall offensive scheme which keeps changing and does require specific schemes because they require different skill sets. Spread is about getting the ball somewhere quickly whereas power is about being patient and waiting for a hole to open. The different formations lend themselves to different styles. A diamond formation is great for speed and deception but difficult to run power out of as the extra back is both probably not a great run blocker and not in a position to contribute at the point of attack. A pistol formation gives extra time to read a defense so it lends itself to the spread game. I-formation is great for power. Clearly we want to run them all.
Mostly, we need consistent reps. Just like everyone else...