Unai Emery’s tough management style on one Aston Villa player could now be reaping the rewards. The Spaniard is known for his immense attention to detail. No stone is left unturned tactically before he departs Bodymoor Heath every evening. The 52-year-old deserves immense credit for how he’s managed to transform Villa into a credible top-four contender. Emery’s man management also deserves attention. He demands the highest of standards. Anything less won’t be accepted. READ MORE: The blueprint of how Aston Villa beat Lille on Thursday evening.His demands have seen the likes of Ollie Watkins, J…