Grecian Max
Very well known Exeweb poster
Yep, also the PDFsJust an FYI - I don't use websites like that as sources, but happy to be transparent with where I do use to back up my points. So for you and anyone else who fancies reading more on it all, take a look at the below - might provide you with better information than the Guardian (or any other newspaper of your choice):
EFL Handbook - Appendix 4 of Section 7 (PFCC Regulations)
EFL Handook - Youth Development Rules
LawInSport - PFCC
Premier League Rules