3. He believes in a balanced offensive attack. "I believe in a balanced offense a lot," Koetter said. "The reason for that is if you ask any defensive coach what's the hardest thing to defend, one of the first things he'll tell you is balance. Defenses are just too good nowadays in the NFL, if they can get a tip and they know they only have to stop one thing, they're pretty good at stopping that one thing. Balance is huge."

2. An offensive scheme "has to be flexible" to a team's personnel.

In this day and age, Koetter said, an offensive system must be flexible to a team's personnel, not the other way around. "As I said before, we all have things that we believe in as coaches, but at the end of the day, I'm a big believer that the system that you have has to be flexible enough to take into account the various strengths and weaknesses of your players," Koetter said. "I think it's foolish to take a system and ram it down a player's throat, if that doesn't play to his strengths. With that said, you can't always make it fit exactly perfect for every single guy you've got on the team, but for the guys that are touching the ball a lot, you need to play to their strengths in my opinion."