Teams and cities spend millions and even billions of dollars on their NFL stadiums. Building a stadium that is fan-friendly and appealing can be a critical factor in a team's success (or failures) for a long time.
A nice stadium can bring in huge revenue for a team, and in turn, the ownership can use that money to keep their top talent and sign marquee free agents.
But which stadiums could use some work?
Here are 10 NFL stadiums that are due for an upgrade after the 2011 season.