Questions from well-seasoned viewers

I watched the show when it aired live, watched it again two summers ago, and again now over the past few months. I am sure I am not the only one that has watched it multiple times.
What questions do you still have after watching every episode closely?

One of mine is how did Mac McGill ever recover from his racial comments? I understand that the team ended up backing him in the end, but it seems like in the real world he would have been fired or asked to resign.

Also, for those that live in Texas, how realistic was this show for high school football? I live in a small town in Michigan and I see several similarities. It seemed to hit on just about every topic I could imagine.