"The likes of Aspas and Alberto have been at the club for a few months now and have seen the difficulties of playing in the Premier League, how hard it is and the physical demands," he told the Liverpool Echo.
"I can see them improving and working hard to fit into it. They will get improve and get better in time. There was always going to be a period of adjustment.
"With Daniel out, other players who have been working hard will get an opportunity. We now have to find a different way to win games.
"We can't just rely on one player for goals. It's the responsibility of everyone.
"It has to be for everyone to create and score goals. If some aren't available, we need to do more as a team - that was the message after the defeat to Hull.
"It was too predictable. Certainly you wouldn't have said that about us in the last number of months.
"We are normally exciting and create lots of chances. We are on the front foot. We conceded a poor goal which put us on the back foot but we needed to be more dynamic. That is something we will look to put right."
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