“There is no doubt there is a natural rebuilding that will come with the likes of Jamie Carragher retiring. I am happy with the squad if I can then put another three or four quality players to it,” Rodgers said. “It is quality we are after, not quantity. We see Coutinho and Sturridge's quality in January, if we bring in another three or four players of that quality and add that to what we have got then we have got a strong squad. "You want between 20 and 22 players. I'm talking about two in every position and your three goalkeepers. Then below that having young players who can support that." Rodgers will probably spend all of the £20million purse that has been made available for him this summer and his main priority will be finding central defenders to replace Jamie Carragher and Martin Skrtel. And after gaining a lot of knowledge on Liverpool's position over his last year at Anfield, he admitted that it has given him a better idea of what areas in the squad need to be strengthened first. “Of course you have an ideal target, but we are getting to a situation now where, for me, you have to have three players and if one doesn't come off you have to be comfortable with the other two," he added. “We never had that in the summer but there were some key positions we needed support in and what I didn't want to do was waste the club's money. I like to be extensive and know what we are bringing in, but also we did not have the time and that was the big issue. "January was a productive window for us and hopefully if we do the similar in the summer then it's going to be a real good place for us.” [cat_link cat="liverpool" type="grid"]