There are two broad camps among the referees. One is led by David Elleray, now retired but who holds the position of chair of the International committee that makes all the rule changes. He more than anyone is responsible for a lot of today's confusing mess. The rule changes have changed previously good referees, e.g., Michael Oliver, Anthony Taylor, etc., into robotic new law enforcers with the result they no longer have a feel for the game. Mike Riley is Elleray's lietenant in charge of the PGMOL. The other camp, mainly retired officials, tend to be influenced by Keith Hackett but they currently have no power. While I like some of the critique Hackett offers about the current regime, his entourage is not without suspicious supporters, e.g., Halsey, Winter, Rennie, etc. The one referee who seems to be able to rise above all this is Chris Kavenagh. Because Oliver and Taylor, (and Atkinson who is somewhat past his shelf life) have allowed themselves to become slavish victims of the new interpretations. Kavenagh is slowly emerging as the best referee for letting the game flow and for both sides at the end to think they haven't been done by faulty decisions. But he's only one referee. The PL needs about 10 every week for referees to become inconspicuous in their adjudication, abjuring the need to bring out Walton and Gallagher to spread asinine rubbish.