Chalk it up to a rare combination of personality and performance, says Scott Minto, director of the Sports MBA program at San Diego State University.

FORBES: So What Does Shaq Do Now?

"The question is whether the league was condoning or tolerating a plan that was contributing to these injuries, " said Gabe Feldman, director of the Sports Law Program at Tulane University Law School.

WSJ: NFL Plays Defense on Suits

"In the typical industry, employees fight to be part of a union and management fears the power of these unions, " said Gabe Feldman, director of the sports law program at the Tulane University School of Law.

WSJ: NFL, Players to Square Off in Court

Michael Collins, director of the sports medicine concussion program at the University of Pittsburgh Medical Center, says the new guidelines are overdue but welcome.

WSJ: Tougher Rules Advised for Athletes After Concussion

"You've got situations where cases could be sent back from one court to another because the plaintiffs have such wildly different circumstances, " said Gabe Feldman, director of the Tulane Sports Law Program.

WSJ: Concussion Dangers: The NFL's Courtroom Playbook��What About the Kickers?

Groves is a Professor of Law and Director of the Business Law Program at Florida Coastal School of Law and director of The Center for Sports and Social Entrepreneurship.

FORBES: BCS and Alabama Make History on Many Levels.

"There is a natural tension here between the courts and the commissioner, " said Michael Cramer, the former president of the Texas Rangers and the director of the University of Texas Program in Sports and Media.

WSJ: Dodgers Owner Frank McCourt Files for Team's Bankruptcy