Newcastle United manager Alan Pardew believes that Brendan Rodgers has not been given "the right tools" to succeed at Anfield.
Rodgers' desire to bring in an additional forward during the summer transfer window was made clear by the Liverpool manager, but Andy Carroll left on loan to West Ham and was not replaced.
Pardew, whose side face Liverpool at Anfield on Sunday, has spoken of his desire for the Northern Irishman to be given time to imprint his style on his Liverpool squad.
"You have to remember that Brendan Rodgers is someone who was brought in to play a style of football and a vision they believe in," Pardew said.
"They have to give him time and the right tools. In the last window, if I'm honest, I don't think he was given the tools he needed so I think it was always going to be difficult for him.
"Hopefully he will get to the next window in a good competitive place, as that's what Liverpool want to be, one of the top teams.
"It's a period for Brendan and the team when they're evolving and when they're evolving they're vulnerable."
Newcastle have not won a league game at Anfield since 1994.