Liverpool boss Roy Hodgson admits Joe Cole's arrival won't be enough to lift the club's fortunes next season.
Cole's signing has given a huge lift to spirits at the club but Hodgson knows there is plenty of work still to do after Liverpool's worst finish to a Barclays Premier League season - seventh - for over a decade and the departure of manager Rafael Benitez.
"It's not going to be an overnight thing," said the new Reds boss at the club's training camp in Switzerland.
"Last season was a very disappointing season for the club in every respect, culminating in a popular manager leaving.
"You don't change doom and gloom or disenchantment with a signing or two.
"I would never want to dupe the Liverpool public by telling them all is rosy now because Joe Cole has signed.
"There's a lot more work to do, a lot more players are needed and we as a football team have got to make certain that when we take to the field the supporters will see there is something different and that we are making the biggest effort we can make.
"Then we can only hope they back us like they have always backed the club in the past.
"We have to get a good atmosphere back into the club, the Liverpool atmosphere that I've known and seen and experienced - often to my cost - over the years.
"We have to get away from the feeling that everything's not right and the club is going downhill because that isn't the case at all."
