I do believe Sigurdsson holds his position with more discipline, roams less, and for a player supposed to support the striker I prefer this.
Based on 1 (one) game of 60 minutes in which he gave a 5/10 peformance at best?
When VdV came on his produced within minutes 2 of the best passes all game and if it wasn't for Lennon's first touch - could have had a classy assits. That's the quality he can bring as a player - a match-winning intervention out of nowhere - exactly what we were missing upfront all game.