This is pretty concerning to me. You have a star linebacker questioning retirement when you've already had your franchise player retire. Sounds to me like our training staff isn't doing the best job of getting these players where they need to be health wise and reassuring them. I know that concussions aren't your typical rehab, but it doesn't sound like our training staff was doing all it could to make sure he was getting healthy. Just my two cents.
C, S, LG, LB, CB, QB, CB
These are the 7 positions, in that order, where I feel that the difference between having a great one and having an average one generates the most wins.
And yes, Center is #1. The difference between a reiable center and a merely semi reliable center is absolutely MASSIVE. Nothing helps your offence like an efficient center, and nothing hurts it like an inefficient center.
Look at what happened to the patriots when they lost their All-Pro center for the year, their offense went from Great to not nearly great. It gimped their run and their pass massively. A great center is worth his weight in pure gold and then some.