Aston Villa host Brentford on Saturday looking to bounce back from their damaging defeat to Manchester City. Unai Emery’s side caught Pep Guardiola’s men in red-hot form as Phil Foden fired City to an impressive 4-1 win. Emery made changes at The Etihad, something similar could be in store for when Thomas Frank’s men travel to the West Midlands. READ MORE: Four things we learned about Aston Villa’s 4-1 loss to Manchester City.Here, Aston Villa Newslooks at how the Villans could line up with four changes in store. Unai Emery to shuffle Aston Villa’s defensive unit against BrentfordAfter shippin…