The word irreplaceable means impossible to replace if lost. In terms of SEC football, the word is a symbol for players whose teams would struggle to win without.
You see, the word irreplaceable and playmaker go hand in hand.
A player who makes a key throw, rush or reception in a critical third-down situation is considered irreplaceable. A player who comes up to make an incredible defensive play at a crucial moment of the game can be considered as such as well.
The word simply defines a player who goes above and beyond the call of duty as role player in a scheme.
With that being said, here are every SEC team's most irreplaceable player in 2013.