Brendan Rodgers revealed how he still hoped to add to his squad in the coming months after Kolo Toure became his fourth signing of the summer.
Rodgers praised the club's recruitment team for their work in completing a quartet of signings before a ball had been kicked in pre-season.
Iago Aspas, Luis Alberto, Simon Mignolet and Toure all reported for the first day of training on Tuesday - and the boss told Liverpoolfc.com that he was hopeful they wouldn't be the only recruits during the transfer window.
He said: "I still think another attacking, creative player, and depending on what goes out of the club - because naturally there might be one or two players who need to go out and play more - then we'll need to fill those areas that have been vacated.
"Certainly another attacking player will really benefit us, and probably another defender. We'll see how it develops over the course of the next few months."
Rodgers admitted the swift action on transfers was a key strategy for the club this summer.
"It's great - it's a big thing to the club because we looked at last summer and there were lots of things that were difficult for us," he said. "That meant that the opening period of the season was difficult.
"From that we've got all our people involved, our recruitment team in - and they got to work as soon as they came in.
"We brought great signings in in January and that's really helped us. Obviously the plan was to get our signings in as soon as we possibly could - and we still hope to make a few more.
"I'm very happy with the four players I've brought in, and they'll add to the group."
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