For now. They work. Train.Another free agent to watch is Reggie Bush in Detroit. He gives the Lions another playmaking threat to go along with Calvin Johnson, and could wind up being the team's best back since Barry Sanders. That's not to suggest Bush and Sanders are in the same league, but this team has been searching for an answer at running back for a long time..

And it bolsters other unions' claims: "Never before has so much media attention been paid to a labor dispute involving so few actual laborers the 120 NFL referees," says Karl Taro Greenfeld at Bloomberg Businessweek. But the controversy also "reflects a larger trend in the American workplace." In addition to a dispute over pensions, the referees' union is rejecting a strict performance metric that is similar to a recent proposal to evaluate Chicago teachers on student test scores. Both the refs and teachers say such rigid proposals fail to take their work environment into account, and the re