The only concern about Mainoo is fans needlessly overhyping him such that if he doesn't play at a very high level all the time, will be perceived as disappointing.
I have many concerns about him.
- In his debut season, he is being thrown into almost every fixture in every competition for which he is eligible, after recovering from a long-term injury. Garnacho's introduction last season was sudden but, by comparison, it seems graceful relative to what's happening with Kobbie.
- Tangential to the above, he looks visibly tired after 60-70 minutes in most matches. Still questions about how his fitness and physique will develop, especially if injuries hamper him further in the next season or two - which our integration strategy is risking.
- Also probably connected to the above, his off-the-ball work isn't always there. He sees far fewer touches than his midfield peers and it looks like some combination of fitness, (current) ability, and tactics.
- It's not clear what he is right now. People say he's not a #6 or a #10, but I'm also not sure he's demonstrated the combination of physical and technical abilities to be classed as an all-action #8. He isn't a highly progressive passer, isn't as fast as genuinely progressive ball carriers, and isn't as athletic as combative midfielders who chew up the ground. He has a delightful touch, close control, and unbelievable awareness, but is that a role in a title-challenging starting lineup? A combination of strengths, some of which he does not possess today, will need to come together to be a world-class player in the long run.
- He has a very good head on his shoulders but extreme and sudden fame at his age can pressure test a player's focus and development in unforeseen ways.
I love watching him play with the knowledge he's young and shows potential, but I think there is a wild hype cycle happening right now as though he's a mature player already where he will need to be. The way he is being introduced to the team and to the world poses many challenges for a player who still has much to do. Onward...