Originally posted by defenderDX:
so what is the biggest difference between our run defense this year and last? why wasn't Bow able to stuff holes and contain like this last year? (not saying he didn't, or anyone else) the complete change in scheme? responsibilities now for his position?
Besides the talent improvement from not having to play Skov, Bellore, and Purcell, there's also the simplified gap assignments in Saleh's defense. There was an article about Jim ONiel containing testimony from CLE players explaining that the run fits in that JoN CLE defense was incredibly complicated. It required the LBs to read what the DL was doing and react off of the DL. Basically they were exchanging gaps on the fly.
I can only guess what they were asked to do. My guess is if the OL blocked the DL into or out of a gap, the LB would have to read that and replace the gap that the DL got moved out of. In a perfect world, and on the whiteboard, maybe this is a great run defense scheme, but when an entire play lasts a total of 2-3 seconds, that is way too many mental decisions to make when a split second can mean the difference between meeting a lead blocker in the hole, or allowing that lead blocker to get 2 yards beyond the hole.
Here's a snippet from that article:
https://www.si.com/thecauldron/2015/10/21/mike-pettine-cleveland-browns-defense-problems-afc-north
Rather than being assigned specific gaps, Cleveland's defensive linemen play different techniques based on how their offensive counterparts are blocking them. The linebackers, then, are expected to guess what technique their teammates are using, scrape through the resulting mess and make the play.
"It's an entire guessing game," said one source. "Imagine trying to define mud."