By Greg Cosell
Don Coryell and Bill Walsh were two pioneering and aggressive innovators who greatly expanded how people approached the NFL offense. As I wrote in a recent piece about the evolution of the offense, both men challenged standard beliefs and conventional wisdom, helping to gradually transform the run-dominated league that Vince Lombardi ruled in the 1960s into the pass-heavy NFL we know today. More than 30 years after Coryell and Walsh first advanced their strategic views, their influence remains as strong and pervasive as ever.
But how did defenses react to these historic changes in offense? Remember that, for years, defensive coaches had been trying to stop offensive formations that almost exclusively featured two backs, two wide receivers and a tight end aligned on the line of scrimmage right next to the tackle. Passing was predominantly a long-yardage tactic, focused on deep, seven-step drops and long-developing routes. The defensive template was fairly well-established, consisting of 4-3 fronts that rarely blitzed, minimal coverage schemes that highlighted man-to-man with deep safety help and basic zone concepts that did not incorporate route progressions or pattern reading. When teams did blitz — and a blitz back then was always defined as sending five or more rushers — they played man coverage, working without a deep safety in the middle of the field most of the time. The rewards could be great, but so were the risks.
Unless they had great talent, defenses of that era (and in the early 1980s) were not strategically equipped to effectively respond to the expansion of the passing game, with its innovative emphasis on quick timing throws, three-receiver sets and tight ends that could align outside the formation. Thanks to Air Coryell, Bill Walsh and the proliferation of the West Coast offense, offenses were usually a step ahead. Teams needed to make a parallel change in defensive philosophy. As quarterbacks became increasingly important to their offenses, stopping them became increasingly important to defenses. The challenge was to exert pressure on the quarterback without placing too many demands on the coverage. Conventional thinking about blitzing held that pure man coverage be used. Cornerbacks had no help; they were exposed, liable to give up big plays and touchdowns if they were beaten on the outside.
Dick LeBeau, the defensive backfield coach for the Cincinnati Bengals from 1980 to 1983, recognized this significant shift. He intuitively understood that the objective was to impact the quarterback without sacrificing bodies in coverage. It was a numbers game: Teams had to rush with fewer defenders while forcing offenses to keep more blockers in pass protection, including eligible receivers like running backs and tight ends. The goal was to have more defenders available to cover fewer receivers. LeBeau addressed the need to bring pressure by attacking specific...
-07-26-2012, 10:58 AM
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