Jimmy Johnson implemented the now famous Miami 40 slide/over defense. The scheme was based upon the fixing everything towards the sidelines, known commonly as "wrong arm technique or bounce technique." The defensive line main purpose was to work hard for penetration on the snap and get up field. This allowed the linebackers to scrap over the top and chase down everything laterally. It also allowed the secondary to play the cut back lanes. Under Johnson Miami primarily played cover 2 zone. Cover 2 was Miami's bread and butter coverage until around 1987. Johnson implemented more quarter coverage around that timeframe, and it became the secret coverage of the Miami defense. Johnson was never a biltz guy. He preferred keeping everything in front of the front seven. In fact I can only recall one game where Miami broke from its normal cover 2 and 4 coverages. Against the noles in '88, Johnson turned the dogs loose, and that formulated the blueprint for the Sonny Lubick style of Miami defense to come.
Dy, I remember after the game Bobby Bowden flat out said,"Jimmy Johnson is a defensive genuis."It was literally the only time that FSU ever got throttled like that
BTW, Jimmy's book, he devotes a good time about how he developed his style of one-gap pressure and how it was so against the grain at that time of read-and-react fronts. Tom Olividatti was no fan, lol
Bobby Bowden wasn't prepared for what Johnson threw at him that night in the Orange Bowl. As mentioned, Johnson was a numbers guys, in that, he kept everything in front of the back seven ( I mistyped earlier when I said front seven). I meant back seven. Johnson rolled that cover-2 (zone) look into a 4-across match up man coverage and sent six defenders. It was pure heat at its finest. Fsu had no answer. Indeed, Johnson was a defensive genuis.
There have been three defensive coaches at Miami who brought something significant to the table. Johnson being the first with the traditional 40 slide/over front. The second was Sonny Lubick. Sonny brought pure "juice" to an already effective defensive philosophy. I'm telling you this guy was a defensive back dream. His philosophy was different than Johnson in that he believed in creating single blocking match ups upfront. If the interior defensive linemen were getting handle with double teams, Lubick would not hesitate in sending linebackers to create one on one match ups. And, that became the staple of the Miami defense under Lubick and Tubberville. Running wider splits upfront and getting off the ball. Let me put it this way, when you're playing with basically four defensive ends ( Patrick, Miller, Hamlet, Medearis) you've got to be quick and fast to be effective. The backers of Armstead, Barrow and Smith provided the necessary juice for the upfront troops to be disruptive as ****. I've never seen a more active defensive front seven than the ones Lubick and Tubberville ran while at UM. As a matter of fact, the backers under Lubick and Tubberville had more responsibly than any other group of linebackes in UM history, particularliy the trio of Armstead, Barrow and Smith. That group brought absolute thunder and genetrated instant heat to an upfield, penetarating defensive front.
The third was BDavis. He and CPagno (?) implemented something Miami had never ran before, the 4-4 defensive scheme. They were more what I would call coverage innovators than front guys. The front seven was like JJohnson, but the secondary is where BDavis made his mark. The now famous (single) inverted cover-2. Davis would bring down ABlades into the box as the eighth defender and rotate the boundary corner, MRumph, as the second two deep defender. He would run this out of a two deep look and 1/4, 1/4, 1/2 look. It was something sweet when ABlades would actually make the takle instead of trying to blow someone up. Also, under Davis the Will linebacker was the freaking man, everything was geared for hi to be free to run and smash. It was a break from JJ's mike backers to be man. Davis' front seven play was not as aggressive as JJ's because the DL actually played more gap controlled assignments. This is something JJ and Davis did during their Dallas Cowboy days
Here's the question about our current defensive staff, where is the innovation? During our championship years, we were a step ahead of our competition. I don't see it with this current staff, even if we have outstanding players at evey position.