​[Getty Images]Unai Emery is having to build an Aston Villa 2.0 after a summer in which he has lost almost the entire spine of his Europa League-winning team.A narrow home defeat by the champions will not have been as alarming as the 4-0 loss at Brighton on the opening day.But this was the first time Villa failed to have a shot on target in a home Premier League game since May 2016 against Newcastle United under caretaker boss Eric Black – when they had already been relegated.In fact, they are the first team to not have a shot on target after two Premier League games since Swansea City in 2017-18.There were debuts for Japan goalkeeper Zion Suzuki and ex-Chelsea striker Nicolas Jackson – replacements for the departed Emiliano Martinez and Ollie Watkins.Suzuki showed both good and bad sides – going for a corner and missing it early on and later spilling a Kai Havertz shot which he gathered at the second attempt.He also made saves from a Declan Rice header and a Havertz one-on-one chance. On both occasions there was an offence – a foul and offside respectively – but Suzuki still made the stops to be sure.He also looked confident and comfortable with passing the ball at the back.Jackson did not have a lot of joy on his Villa bow up front – but Watkins would also have struggled to do anything with little service.The closest they went was when Emiliano Buendia crashed his long-range effort off the woodwork, but there had been a tackle just before it that would probably have ruled out a goal, had it come.Summer signings Alejandro Garnacho and Aaron Wan-Bissaka both came on in the second half for their Villa Park debuts.Ibrahim Mbaye and Taylor Harwood-Bellis were both watching from the stands at Villa Park and are expected to finalise moves on Tuesday’s deadline day.