I feel your frustration bro, spending so much to sign a player that ends up as flop and still having issues with his coach is very frustrating. He showed sign of disrespect and it was right for the coach to take the necessary action. It is the right thing for the team and the player to part ways to serve as a reminder for others that want to follow his footsteps.
Sancho is a stubborn goat but Erik was too harsh and disrespectful to Ronaldo; is that what it is now? Last time I check, Erik see Manchester United manager as an achievement and he feels insecure because he thinks because he doesn't have much trophy, he would be disrespected and is becoming too standard protocol person without any meaningful achievement. Sancho is a bit stubborn but I see this as a revenge for Ronaldo Erin frustrated some times ago.
Signing all these young players is getting too much in my opinion because not all of them will have the opportunity to join the first team. Most of these young players signed last season have not yet to have a playing time with the first team despite having potentials and some were sent on loans so what will happen to these new ones signed this season i think a lot of them will be sent on loan again.
It will be difficult for the coach to pick a starting line up from that many players but lets just see how it goes i have so much faith in Enzo Maresca. Marc Guiu is actually a good player that probably needs playing time to develop so i don’t know if joining Chelsea would be the right decision because clearly it would be difficult to have a playing time with Chelsea currently but we may never know.
Building comes before selection and I believe Maresca must have build his players on paper, just fixing starting players is what is needed and is the more reasons why he is bringing some good guys like Marc Guiu. Let him scarp out more and more players that are nothing but torn of sheet to the club. He shouldn't sell them yet especially the once with a year contract left, if he achieve much with his choice then he can flush out other ones and sign more new young players.