There were myriad of reasons why the team struggled on defense. You score 45 and lose, it is not the offense, period. Losing Tua hurt and I think we win with him under center.
1st and foremost the defense did not have a dominant nose tackle. Argue all you want, but the 3-4 begins and ends with a 2 gap NT and none of the guys this year were getting double teamed. The last 4 or 5 years we've had either a dominant NT or a guy on the D-line who was so good he created mismatches constantly. Quinnen Williams, Jason Allen, etc. While our young LB's did not play well( Honestly, I've never seen a kid as lost as Christian Harris, I watched him time and again running around pre-snap trying to figure out his responsibility) , but they are also having to take on a blocker almost every down.
The 2nd major issue is recruiting. We've had good recruiting classes, but had some misses that were costly at critical positions like LB and nose tackle. We've also had a few kids who were head cases from day 1. See Enoma, and Alfano. Think if we had those kids lining up this year. Enoma looked to be a budding star, but apparently going to class is too difficult for him. We' don't have kids taking directed reading classes in Stats either. The recruiting pool has been thinned out by Kirby Smart, and Pruitt as well other coaches . We had our way in Georgia while Richt was there. Now we get maybe 1 in 3 or 4 we recruit there.
Then there is the early exodus of juniors. We may lose as many as 10 or 11 juniors this year and replacing them with players who are at their talent level has dropped off. Experience is now at a premium as we had 6 freshman starting on the defense by the end of the year.
The 3rd point I'll make is we have just gotten away from Alabama Football. By that, I mean we simply aren't always the toughest dog in the yard any more. We used to run the ball, play good sound defense, and solid special teams. We just made them quit. Coach Saban said it himself that we needed to get the "Bama Factor" back and we failed miserably. There is no doubt Tua is a special talent, but we got so far way from running the ball that if he didn't have a good or great game, we were doomed. I believe if we had established the run more, Tua would not have gotten hit much less and he might have been there to play in the Auburn game. I don't think we had to run the ball every down, but we were so one sided, that if we had a kid drop a ball, we lost a possession in a game where every possession needed to produce points.
I will add that I am not a Sark fan. I saw no consistency in the system and saw no effort to establish anything other than Tua slinging the ball. The west coast offense is fine in the big 12, but in the SEC it is a different matter altogether. I'd like to see us be more like UGA this year. We had the guys to do it in the backfield and the O-line, but I never saw us run the ball except as a change of pace for the most part. If we want to make them quit, we'll have to start with running the ball more.
I have complete confidence Coach Saban will make whatever changes that are necessary. We'll be back.