Everton fans are all saying the same thing about Michael Keane after his brief cameo against Brentford earlier today. After all, few expected him to come on at all, let alone in the role that Sean Dyche had laid out for him. With mere seconds left on the clock, the 52-year-old manager had been readying a substitution for some time. It was expected to be a classic alteration, made late on in stoppage time to drag out whatever precious time was left on the clock. But what Dyche did shocked many, bringing off a striker and throwing Keane on in his place. So, what have Everton fans been saying abo…