The Titans drafted Brown because he reminded the staff of Eddie George. Do what that assessment as you will. He looked good in the playoffs against Ray Lewis and the Ravens D last season. He definitely looks like a younger, fresher Eddie George. Not a real game breaker, but Fisher may want to run him 20-25 times a game and get back to the style that led them to the Super Bowl. If so that makes him a steady #2. If he excels in goal line situations, he becomes a sleeper top 10.
I've heard that the Titans may want Robert Holcombe to shed the weight he gained to switch over to fullback so they can use him as a tailback more often. Personally I'd rather they keep Holcombe as a fullback. Eddie George had his most succesful seasons when Lorenzo Neal was with the Titans. Fisher seems to have gotten away from the fullback as a path clearer philosophy and the running game has suffered.