We are always hearing about certain players being underrated and not being shown enough appreciation for how valuable they are to their teams.
There are many of these players in the NFL today. Sometimes, the tag of being underrated can stick to a player, even if it isn't the case anymore
Take Chad Pennington for example—he has the highest career pass completion percentage of any quarterback, and took a bad Jets team to the playoffs, yet he was always being criticized in New York.
He moved to Miami, and brought a 1-15 team to the playoffs. He is still "underrated," despite his career achievements.
All of these are players like Pennington, who play important roles for their teams yet don't get enough recognition.