The Dallas Cowboys' signing of defensive lineman Anthony Hargrove on Thursday got buried under the at-long-last resolution of the Doug Free matter. But as Calvin Watkins writes on ESPNDallas.com, it says something about where the Cowboys are in terms of their defensive line. As Dallas transitions to a 4-3 front this year, there has been some concern raised about depth. The starting quartet of DeMarcus Ware, Anthony Spencer, Jason Hatcher and Jay Ratliff appears very good, but should one of those guys get injured or need a rest, things get dicey behind them. That's where Hargrove comes in, as the Cowboys believe he can play end or tackle on a 4-3 line...
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