The reigning NFC champions are making a concerted effort to beef up their defensive line.
The addition of Rubin is all about his upside. The former Cleveland Brown is younger and more athletic than his predecessor, Williams. Rubin put up modest numbers last season -- 28 tackles and one sack -- but those stats should be on the uptick in Seattle. The defensive tackle is better suited for Seattle's 4-3 defensive scheme rather than Cleveland's 3-4 defense, so we expect his productivity to be better in the Pacific Northwest.