In this photo taken Feb. 15, 2013, football player Will Witherspoon, center, asks a question of Danny M. Leipziger during a macro economics class at George Washington University in Washington. Witherspoon is working toward a Masters of Business Administration degree at George Washington as part of an NFL back-to-school program. (AP Photo/Alex Brandon)

In this photo taken Feb. 15, 2013, Derrick Dockery, left, his wife, Emma Dockery and Will Witherspoon pose for a photograph outside their macro economics class at George Washington University in Washington. The three are getting their Masters of Business Administration at George Washington as part of an NFL back-to-school program. (AP Photo/Alex Brandon)

In this photo taken Feb. 15, 2013, football player Derrick Dockery, left, watches as his wife, Emma Dockery, holds her hand up to ask a question in their macro economics class at George Washington University in Washington. They are working toward Masters of Business Administration degrees at George Washington as part of an NFL back-to-school program. (AP Photo/Alex Brandon)

In this photo taken Feb. 15, 2013, football player Derrick Dockery, left, and his wife, Emma Dockery, work on a quiz in their macro economics class at George Washington University in Washington. They are getting their Masters of Business Administration at George Washington as part of an NFL back-to-school program. (AP Photo/Alex Brandon)

In this photo taken Feb. 15, 2013, football player Will Witherspoon works on a quiz in his macro economics class at George Washington University in Washington. Witherspoon is working toward a Masters of Business Administration degree at George Washington as part of an NFL back-to-school program. (AP Photo/Alex Brandon)

In this photo taken Feb. 15, 2013, Danny M. Leipziger, center, teaches a macro economics class at George Washington University in Washington. Football player Derrick Dockery, his wife Emma Dockery, and Will Witherspoon, are in the class as they pursue Masters of Business Administration at George Washington as part of an NFL back-to-school program. (AP Photo/Alex Brandon)

In this photo taken Feb. 15, 2013, football player Will Witherspoon, center, asks a question of Danny M. Leipziger during a macro economics class at George Washington University in Washington. Witherspoon is working toward a Masters of Business Administration degree at George Washington as part of an NFL back-to-school program. (AP Photo/Alex Brandon)