I've even heard that Xavi is trying to build a new strategy to keep Barcelona on top of Europa.
He succeeded to build up Barcelona and helped them to gain a top position in La Liga and mostly will win it in this season. However, in Europe, Xavi have yet succeeded with his management. The past season gave their fans some hope when Barcelona got an Europa League final match but they made their fans disappointed by a defeat against Frankfurt. In this season, they made bigger disappointment in both Champions League and Europa League. It looks like Xavi does not have good experience with cups but he can improve himself.
Look like Xavi is trying to bring back Lionel Messi to camp nou, he has a big chance to bring back Messi because his contract in PSG is almost over in next year. But of course, Barcelona must have a lot of money to pay salary, but it's not a problem if Messi lowered the standard just for fans, and of course, barcelona can do that for advertisement.
It has been rumor in many months but I don't think it will happen.
Xavi is really good in what he's doing at the moment and I praise his work, after Barca went through those lack of form losing games week in week out problems of players not in good shape, hell yeah Xavi came and changed the Barcelona team and the way they're going I believe it will take them to those glorious days.
This season is a successful one for Xavi and Barcelona and we can officially say that when they lift La Liga trophy. However, to be more competitive in Europe, they have lot of things to improve and they should know that Lewandowski will be able to contribute for them at his best in next two or three seasons only. After that, Barcelona will have to find another good striker and they must have plan for it now.