Wigley scored what is still the best goal I've seen from a Blades player soon after he joined, but his purple patch was after that. He was really good in the middle of 1986-7, before we let him go to Birmingham. The feeling was that he was "playing to get away" so to speak.
Of similar vintage was Mel Eves' excellent 1984-5 for us after signing from Wolves in December - 16 games, 9 goals, including that fantastic winner against Leeds at the Lane when they were ripping the seats out of the BLUT (and throwing them down on their own fans). Unfortunately injuries meant he hardly played the following season and only got one more goal.