In 2010 (Manning last healthy year) his defense ranked 23rd and his run game ranked 29th. His OL was 22nd by FO and 20th by PFF. Their records state that Manning, and Luck carried a pretty average/below average roster. What happens to average/below average rosters? They get exposed in the playoffs which is why Manning lost in the 1st round to the Jets 16-17 in the 2010 season and Luck lost in the 1st round to the Ravens 9-24 in the 2012 season.
A premier QB is enough to make playoffs more often than not. It's not enough to win play off games or Super Bowls. When discussing Dan Marino what do dolphins fans always say? If only he had a defense and run game...yet despite not having great defenses or a good run game he made the playoffs 10 times in his career because like I said a premier QB is enough to get you the playoffs more often than not but when premier QB gets into the playoffs with an average/below average roster like Marino,Manning in 2010, and Luck in 2012 you get exposed because now those team deficiencies are harder to overcome. Tell Dan I said hi back.
2 things:
1. Manning and Marino were generational QB’s. You may believe Tua is one if you like, but I think it unlikely
2. The overall ranking of the Colts individual units means nothing unless measured against their opponents. Remember what division the Colts are in.