It’s fair to say that Aston Villa’s transfer team were rather busy this summer, welcoming no less than eight players to Villa Park. Thus far, Amadou Onana has made the biggest impact for Unai Emery at Villa, the club’s biggest outlay of the summer. Otherwise, Ian Maatsen is still biding his time on the bench, partly because of Lucas Digne’s strong start to the new season. Ross Barkley and Jaden Philogene are also just being used as back-up right now – two players who may be targeting minutes in the Champions League. That being said, for all these arrivals, players also had to leave Emery’s pro…