Should NFL worry about referee turnover? Here's why there's concern

ESPN.com
Should NFL worry about referee turnover? Here's why there's concern
Should NFL worry about referee turnover? Here's why there's concern

Close ESPN.com national NFL writer ESPN.com NFC North reporter, 2008-2013 Covered Vikings for Minneapolis Star Tribune, 1999-2008 Follow on Twitter A new anxiety is filtering through the NFL's officiating ranks. The first training camp opens in 10 days. Preseason games are less than a month away. There has been unprecedented turnover among referees, including two unexpected retirements last month. And because of late approval from owners, hardly any of the league's 121 officials have been briefed in detail on a series of rule changes that will require fundamental changes in the way they administrate games. That confluence will make for a hectic three days this weekend in Dallas, where senior

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