The Netherlands international has revealed frustration at the Villans' poor start to the new campaign, but has seen enough potential in the side to be positive about
Villa have one just won of their opening six games under new boss Paul Lambert - their worst ever start to a Premier League campaign - and needed a late equaliser from Darren Bent to avoid slipping to defeat in the Midlands derby against West Brom on Sunday.
Dutchman Vlaar was named captain by Lambert ahead of their 2-0 win over Swansea and, although the centre-back has been praised for his performances since joining from Feyenoord, the 27-year-old believes that the Villans need to up their game if they want to avoid another disappointing campaign.
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He told Sky Sports: "The most important thing is consistency and we haven't shown that.
"We produced a really good team display against Swansea and we should have won more than 2-0.
"At Southampton, unfortunately, it all went wrong after Darren Bent had given us the lead. With a young team like ours, you know you're going to have ups and downs, and we know we have to be more consistent."
Whilst the Netherlands international has been frustrated at the lack of positive results since moving to Villa Park, he was quick to stress his delight at being made captain so soon into his spell in Birmingham.
He added: "It wasn't something that was on my mind when I joined Villa but I'm always looking to improve my game and I enjoy the responsibility of being captain.
"It's a great honour to have been appointed captain."