I see where youre coming from, but it seems strange that Ossie going further forward (who has looked exhausted the last couple of games) made a difference in the last 10 mins. Like I said, I didnt see the game so cant really comment, I can only repeat myself.
Vellios' form isnt comparible because hes not given the chance to play, nor is he in the same league of skill. But, last time I saw him come on, he helped us turn 1-0 into 2-1... I think thats were some people might be coming from.