Since Manning won his last and only Super Bowl, he is 2-5 in playoffs, including 4 one-and-dones and a Super Bowl loss. In 09's run he did not play very well either - Thanks to Garcon's effort he avoided a pick-6 in the Raven's game. In the Jets game he was lucky to figure it out at half time. Both Pats and Chargers got eliminated.
After he won the Super Bowl everybody believed he finally took the monkey off his back, but every yr he proved people wrong.
Together with many fans, I used to say it's Colts fault for not supporting him enough. This time many blame the Denver defense for blowing the coverage. I thinks it was insane defensive play calling at the end of the regular time. But it could have stopped much earlier considering Holiday game them 14 points for free and the team never trailed. Manning had so many opportunities to get ahead with confortable lead, but he failed every time. His uner-throwing Thomas resulted in the failed FG before the end of 1st half and a Ravens TD. His 3 TOs turned into 17 pts with a FG ending the game. He never threw down field for a single time. He blew the three opportunities to drive into FG range in the OT. It just did not look elite. Manning did look old and tired.
Manning's offensive scheme works - only in the regular season. In playoffs against good teams, it does not work consistently. He is an offensive coordinator on the field, but he is not a very successful one in the playoff. The scheme is too simple and the adjustment is too slow. When facing playoff teams which have conplex game plans and are playing lightout, only having Manning's own plan is not enough. However, since no alternative options has been tried in the regular season, the coaches have no idea how to help him and they are caught off guard.
I still think the best choice for Manning - if his purpose was to win another Super Bowl - was to join SF and simply play QB, not OC, in their scheme. I believe he understood it, but if not for being in the same conference as Eli, he insisted to his own scheme and always wanted to prove he can win big games on his own. Knowing Jim Harbaugh's strong personality, he selected to join a team that would allow him to do everything he wanted. They quickly gave up the tries to infuse their playbook with Manning's earlier in the season and gave him full control. They didn't even try to add anything new even when they were cruising late in the season. Manning demanded prefect execution, but when the opponents kinda figure it out or he is not 100% he is also confused and helpless.
Sorry Mr. Manning, your play-calling doesn't work in big games. You were out-coached by Belichick and out-played by Brady before, same by Sean Payton and Brees, and now the dummy Jim Caldwell and Flacco. Football is an ultimate team game and it takes more than one arrogant QB to win in big games nowadays. The young QBs are growing up and teams are evolving. Time for you to find some help if you still want another ring. The window is about to close, better hurry up.