A source close to the process tells us that Arkansas running back Darren McFadden has narrowed the field of potential agents who’ll negotiate his rookie contract (and, more importantly, help position him to be drafted as high as possible) to six.

Per the source, the finalists are Ian Greengross, Angelo Wright, Terry Watson, Fletcher Smith, Lamont Smith, and Bus Cook.

McFadden previously has hired Mike Conley to handle his marketing work, and lawyer David Cornwell to assist the selection process and to negotiate the deals with the various service providers.  Per NFLPA rule, potential football-contract agents could have no contact with McFadden until January 19, since 2007 was not his last year of NCAA eligibility.

McFadden, a two-time first runner-up for the Heisman Trophy, is poised to be one of the top picks in the 2008 draft.