Just one tip for everyone that is obsessed with xG: prior xG the measurement for chances were ccc's (clear cut chances), in my opinion these still rule above xG. Also people who are struggling to score and get high xG values, a long shot from 20m that ends up at the goalkeeper or woodwork could be valued as 0.25xG. When you compare xG to clear cut chances, clear cut chances are always scarce. If I remember correctly, there's also a tool to see which shots got xG values. My advise is to reduce long shots through player instructions. Players still tend to ignore 'work the ball in the box' instruction.