I totally forgot about that, he made no impact there because the talent level is nowhere near what it is now and that's a huge credit to Elston and the recruiting he has done.
Well, not sure you are remembering all of his tenure very well.
In 2012 we had the #1 defense in the country through the end of the regular season. A significant part of that was dominant DL play. Our top 3 Dlineman of Tuitt, Shembo, and KLM combined for 25.5 sacks and 32 TFL's. For comparison, Okwara, Kareem, and Tillery (last year) combined for 20.5 sacks and 32.5 TFL's.
In 2013, (with KLM gone and both Tuiit/Nix injured and out of shape) the group took a significant step backwards compared to 2012 but not that much compared to 2018. Tuitt and Shembo (the DE's in that defense) had 13 sacks that season. This compares to Kareem and Okwara's 12.5 sacks last season.
So, there were certainly years where we had comparable performance under Elston's previous tenure and his current tenure. However, the best part of this current tenure is it looks more sustainable as the recruiting has been more consistent.