Fair enough, but I think his coverage skills are better than his pass rushing skills, which means he won't be used very often, just due to the scheme we play. If he is playing MLB in a 4-3 under, he will have to get his nose dirty.
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You just don't see this brute physicality from Smith.
That's absolutely piss-poor leverage, technique & attempting to impose some will, by an O-Lineman. The OL doesn't even look set to block & gives weak effort. Barely attempts to put his hands up.
Similarly, when Jack was trucked by Logan Thomas...he tried to go high on a bigger player, and lost in embarrassing fashion.
We've all seen D-Linemen get rag-dolled by O-Linemen & vice-versa. Some much bigger DL players (in terms of size vs. LB's), have trouble getting off blocks, etc.
In the pass rush film from ND's practices...you can see Smith battle a bit with guys like Ronnie Stanley. And yes, he does want to use his speed and athleticism (two of his greatest attributes), to his advantage. But he's capable of displaying some power as well.
Smith being taller & more linear than Jack can also affect leverage. That's one of the areas I think Jaylon needs to improve. Though they typically carry similar weight...Smith is 2 inches taller & not as compact.
With the above said, there are plenty of even smaller/faster (smaller than Smith & Jack) LB's making big impacts in the NFL. Recent examples would be Smith, Alexander, and David. Alexander & David having success playing in a similar scheme to the one Marinelli utilizes.
Even guys like Ray Lewis were better with mammoth DL players in front of him where he didn't have to take on & attempt to shed as many blocks.