Yankees GM Brian Cashman said Tuesday that he hasn't settled on David Robertson as the 2014 closer. Mariano Rivera has retired, and replacing him could prove to be a tough task for the Yankees. "I'm not sure if Robertson is capable yet. He's never done that before," Cashman said at the GM Meetings in Florida. "I think he's earned the right to take a shot at it, and he very well may be the guy. But we're not anointing him the guy."