Hughes is not #58 from Denver or #52 from Oakland but I think this year he has sacrificed production and stats for the betterment of the team, or to accomodate other players in the system.
With Pettine, Schwartz and in Ryan's first year Hughes would play almost exclusively from the right side of the formation as DE or LB standing up. Nobody can dispute the production he had there, at times he was playing at elite level.
This year, Lorax and Shaq are playing the right side and Hughes is playing from the left side of the formation. Maybe his technique is not as prolific rushign the passer from the left as it is from the right.
Still, the 3 man rush poses no threat to the opposing QB. a group of 5 good OL will always neutralize 3 defenders.