I think you'd have to take into account who we've played these past 3 games - sides near the bottom of the league, and McNaughton has done well to be fair to him.
But Hudson over him @ CB all day long I'm afraid. He has been quality all season, not just since the turn of the year like most people are saying
You could then keep Samuel at LB to make sure he keeps gaining match fitness, and stick Kev at RB (this would be very harsh on Quinn), but I feel the defence would be better balanced, and Samuel is quality by the sounds of it (and I have seen him play, it's just the fact he's only played 2 games for us yet.