Ever wondered why we lose so many goals early in halves? Could it be because he has absolutely no motivational skills whatsoever and is more likely to send them to sleep than on the pitch fired up?
Why do we concede so many goals from individual mistakes? Because we have absolutely no plan, organisation or shape. The majority of footballers are idiots, they need a clear plan and options to pass the ball to. If you take away the plan, have a system without options, give them too much freedom and encourage them to make passes in dangerous areas you will get mistakes. There is a reason well drilled teams like Conte's don't have these mistakes.