Look, I'm trying to be pleasant, but I'm not sure how many more times you can tell me I don't understand things and that's going to continue. You're treating me like I'm a 10 year old child learning the sport and you're the wise old man with all the answers.
Because I don't agree with you and the coaches, doesn't mean I don't understand. I've played football and watched it at all levels religiously since I was 5 years old. And I've been a coach. Not football, but I understand the decisions you need to make to get the most out of your team. Decisions you feel are best that not everyone paying attention is going to agree with.
As for a 4-3 defense being successful with undersized players, that is essentially my point. My belief is that if you have undersized linebackers you need to play with more of them not less. Using 3 undersized linebackers to help stop the run and still have good pass coverage is better than having 2 undersized linebackers to stop the run and have good pass coverage.
I hope that we can just agree to disagree and move on cordially.