I didn't miss your point. I think it's arguable whether HCSF actually stepping made a difference or not (I think it probably did) and whether those changes even could have been made weeks or months ago, which goes directly to whether your argument that the coaches should have done this 10-11 games ago. Your argument is pretty strongly undercut by the new starting LT not being here that many games ago. And you're not making any additional points to explain why that doesn't undermine your argument.
You could make another argument for why the 10-11 games is a better argument than the last 4-5 games or you could admit that's not a good argument in favor of your main point and make a different argument supporting your main point. Personally, I was leaning towards your point that Austin isn't doing a good job, but the 4-5 weeks evolving argument is a strong counter to your main point, But if you're not going to make any additional points other than to keep repeating your conclusion or blame others for not understanding, then I don't think you're going to convince very many.