Your teammates can correct your positioning after a move. The coach can tell you how you can improve. Perhaps someone will whisper in your ear to tell you where to aim your free kick.
But there is only one person able to take you to the highest level. Someone you must beat every day. Yourself.
Cristiano is the first to challenge Cristiano. The first to self-impose his greatest lesson: "If you think youre perfect already, then you never will be."