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Under Vic Fangio, the 49ers' defense ran a basic scheme with few blitzes. But with Eric Mangini in charge, expect lots of movement and interchangeable personnel.
Entering his third year in the NFL, 49ers receiver Quinton Patton said he sees a smarter player with a better work ethic and a lot more confidence.
With a new coach comes a new way of doing things. But two of the projected starters on the offensive line have been working out on their own this offseason...