Yes, but if we had a holding midfielder, they would normally be sitting protecting the backline but a little biased to the side that we're attacking That is because the full-back on the other side would normally hold. For the first goal, Spence did actually stay at LB when Porro foraged which means Biss in a conventional system should be sitting tucked in on the right. He wasn't, as Ange wants these guys to go and find space. His starting position as we lost the ball was over the other side of the centre circle, much closer to LB than RB.
In most tactical systems Biss would have just sprinted over to Kirkez and been there as he crosses the half way line. Obviously, Ange knows best. We don't need a 6, 8 and 10. We need two 8's and a 10. Then these moments happen over and over.
Also, Spence was so lackadaisical about defending all game. There was no getting back, resting behind the ball and marking his player. He spent way too much time just ambling back. He was also the most likely out the 4 to keep them onside. I hope this stuff comes more naturally to him at RB. That shouldn't have been goal based on the manager and the players.
As I say, Ange knows best.