And nobody is happy that he at least recognizes mistakes and is willing to adapt to improve them? Geez, how quickly we forget just how frustrating it is to have a coach that is so set in his ways that he refuses to change anything...no matter how often what he does doesn't work. Yes, Rivera makes mistakes, and some of them have hurt the team. But, there is no disputing that he self evaluates, and is open to changing his philosophy when he realizes it needs to be changed (even if his timing doesn't always jive with fan's timing).
And no, this is a different lesson from last year. Last year it was about being willing to go for it on 4th down rather than play it safe and punt/kick a FG. This year it's about staying aggressive when you have a lead late, even thought it is risky and can backfire. Yes, they are similar and deal with aggression, but are very different situations and lessons. IMO, Ron has both a conservative and aggressive side, but he's so afraid of making a mistake that he tends to lean towards being conservative until it's clear that approach isn't working. And since it is virtually a guarantee at this point that he will be back next season, at least try to be thankful that he is learning these lessons...after all, it's better late than never.