He explained: “If we really want to attack the title this year we have to improve because all the others will improve as well.
“I really think the Premier League clubs, from a football point of view, did really, really good business so far. As I see it, all teams got stronger during the transfer period with the signings they’ve made .
“We have to improve so that we can be in a similar position as last year, otherwise we have no chance. That’s completely normal, it’s not new for us.
“That’s the need we’ve known about since I’m in actually; it has nothing to do with the position in last year’s table, it’s just the situation – other teams will improve.
“If you want to improve your own situation, you have to make big steps and that’s what we try all the time. One of these steps is for sure keeping consistency. It’s very, very important but how can you be consistent?
“Only by performing on your highest level. That’s what we will try to do and because of the number of games in a shorter period of time, it must happen there are different line-ups and that’s something we have to make sure we are able to do.”
Liverpool could welcome back captain Jordan Henderson at Villa after a knee injury but centre-back Joel Matip, midfielder Alex Oxlade-Chamberlain and left-back Tsimikas are expected to miss out.