The San Diego Padres' busy offseason continued recently, with the signing of free agent right-hander James Shields to a 4-year contract, worth between $72-$75 million.

Shields joins newcomers Matt Kemp, Justin Upton, Wil Myers, and Will Middlebrooks on a revamped San Diego roster.

Corey Brock, of MLB.com, evaluates the current Padres roster:

MLB.com's Richard Justice discusses the impact that Shields will have on the San Diego pitching staff:

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