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Not a bad combo. Quarters coverage is actually an excellent runsupport defense because it has pattern matching and you can get 8 or 9 guys in the box.

Combined with a zone blitz the only potential weakness is a screen pass or quick pass to the swinging RB.

No need to- you have it right already. Quarters can cover up to 4 vertical (deep) routes but also plays the short outs aggressively.  The. Two safeties pattern match the inside WRs if they go short or long, and the two corners do the same, so they stay near the line of scrimmage unless the guy they are covering goes deep.

I should not have used the word “weakness”, the better word might be susceptible.  

There should be no visual clues given by the defense if they are running the combo you have selected, so the odds of a swing or screen pass being called are moderate.  

I'm interested in some examples of specific calls, like the one I found on line.

I also see the OL pointing and calling out stuff at the line, there is a lot going on down there presnap.  Duh.

Oh, you'd be surprised how clueless players can be, outside their own, specific assignments.  And many lack the spatial awareness to go from the right side to the left side when many assignments are simply flipped...it's too much for them to handle at game speed.

awesome, thanks

just grabbed Osborne's option offense from 83, 96, and 97

Well, the pointing to the middle LB (Mike) isn't exactly because he's specifically all that important, but because he's the guy you start with to identify where all of the other positions are at.  If I'm the TE and I can only see 2 LBs from where I'm setting up, it'd be nice to know which one is the MLB so that I may seek out the correct guy to block.

Missed assignments happen a lot because the assignments, at least along the OL, are difficult to begin with.  Often times, the G and T need to block the DT and get up to the 2nd level (LB) - and where he's going to be during the play, not where he is at the start.  Sounds fine, right, unless the DT is in a 3 technique (outside shoulder of the G) and firing out into the gap between the T and G.  Sure, the T can block down on him, but as the play progresses, that T is trying to give him to the G to continue blocking himself as to free up the T to get to the LB.  
Or a simple reach block where that G has to get his head across that DT and block him by himself as the ball comes up right behind him...



I'd never want to play QB at an elite level.  You've got man (if the defenders are good enough) all kinds of zone looks.  You can have zone behind man or vice-versa.  A corner blitz with the rest of the back 7 rotating around during the play....safeties cheating up before sprinting 30 yards back or vice-versa....it's nuts.  

And any one little thing can make a perfect play become a crap play....a throw that's too soft or too low, a lazy route run, a RB cuts back too early or too late, an OL doesn't get to the 2nd level, etc....

It's hard to get 11 people doing a perfect job simultaneously in any walk of life, much less when there are 11 people working against your 11.  And even when you have all 11 doing their job, you have that safety you mentioned recognize something during the play, and blows it up.  That's just film study.  The DE who identifies a screen before anyone else can ruin it.  If a LB knows your tendency of going to the quick slant on his blitz may just cancel it and get an easy INT.  



It's a hard game with lots of through behind it...and if you're caught thinking during the play, you're toast.