Everything is a competition.
That's the philosophy that drives the Pete Carroll-led Seattle Seahawks (and now the Jacksonville Jaguars under Gus Bradley). More importantly, it's a core principle that all successful athletes end up following.
If you're not competing, the next guy has an edge because you can be darn sure he's gunning for you.
For fans and media, it can look like someone doesn't have anything left to prove when they've already seemingly reached the mountaintop. That's just not how type-A personalities are wired, though.
These superstars got to where they are because they woke up every morning with some sort of chip on their shoulder. The very best learn how to keep from being complacent.
This list is not about players who are looking to take the next step, and it's not about "hating" on these players as if they're not legitimate superstars. So if your favorite player is on the list, there's no reason to get upset.
No, this is just identifying the little whispers that are already in their ears as the NFL's best prepare for the 2013 season.