Getty The 49ers' Dre Greenlaw was carted off from the Super Bowl with an Achilles tendon injury. Linebacker may not be at the top of the list of needs for the San Francisco 49ers , but that doesn’t mean they can’t address it with an intriguing move. In this case, it would be an intriguing move because the Niners would be able to fill a need on a potentially cheaper deal with a familiar face. This said wise move could involve the team bringing back veteran linebacker Dre Greenlaw , who was