That signing actually happened on March 15.
Anyway, Roach is a very capable linebacker (he filled in for both Lance Briggs and Brian Urlacher when they spent time injured) and a pretty solid starter. The biggest knock on him is that he tends to have lapses in focus -- gimmick offensive formations absolutely baffle him -- and he isn't terribly fast, so he isn't a guy you use as support against a speedy receiver. Solid pickup by the Raiders, though, and it's definitely a loss for the Bears, who are hurting for LB depth.
Anyway, Roach is a very capable linebacker (he filled in for both Lance Briggs and Brian Urlacher when they spent time injured) and a pretty solid starter. The biggest knock on him is that he tends to have lapses in focus -- gimmick offensive formations absolutely baffle him -- and he isn't terribly fast, so he isn't a guy you use as support against a speedy receiver. Solid pickup by the Raiders, though, and it's definitely a loss for the Bears, who are hurting for LB depth.