As Pep said about Foden the same could be said about Bellingham. Foden had to learn the role. Pep said "Just in the middle, he has to be more careful in many, many aspects and maybe needs a little more time to realise what he has to do defensively especially, but of course he has something special in those positions, the quality in one-against-one, arrive to the box, sense of goal, so it is all there."
Watching England Serbia it felt like Bellingham was running everywhere instead of trying to be more strict with his position getting in the way of Rice or Trent and not giving them space to try move the ball further up the pitch. Bellingham needed to use the ball better at times he was making runs on his own with no1 else supporting. If he was more composed it would have helped England work themselves up the pitch instead of being gung-ho himself. Like a one man team.