Puyol is easily th best right back in La Liga,and the same goes for Roberto Carlos on the left,but finding central defenders is where it becomes difficult.
In midfield you have the likes of Makalele,Baraja,Emerson,Figo,Joaquin,Musampa,Luis Garcia,Zidane and Aimar to choose from,so there should be no problems there.
Same thing goes for the forward line as Fernando Torres,Darko Kovacevic,Ishmeal Urzaiz and many,many more are in overwhelming form.