PV was in them constantly, they'd show him walking out with players joking, there was always a couple shots of him clapping and giving some player praise and the videos often ended showing the players playing some type of skill game like soccer tennis with PV playing with them. I'm leaning towards it being that they knew people wanted to see PV so they put him in more because his celebrity.
I actually have no idea how present is a typical manager expected to be across training sessions. I just noticed that the screen time for PV vs Dome was different. Are managers typically expected to be there the majority of the time or is the head coach often absent for some trainings and the assistants run everything? Does it vary by manager and style?