General manager Phil Savage said on Wednesday that the future of running back Jamal Lewis is still up in the air.  Lewis will be an unrestricted free agent after this season as he currently is playing under a one-year deal with $3.5 million.  Lewis can also earn another $1.5 million in incentives.  Savage added that he and Lewis have a good relationship and will keep the back in the loop in terms of what the Browns decide to do.  Lewis ran for 134 yards this past Sunday in their victory over the Houston Texans.