It's a great opportunity for Langford, but also a lot of pressure. IMO, there should be SG1 referees as 4th officials for televised games, and a minimum of SG2 as 4th official for non-televised games. I know more officials are being used for VAR, but there should be enough for this to happen, rather than risk someone making their PL debut on TV at one of the big 6.