This is what I believe is the best long term plan for Barcelona. Every position has a mix of experience and Potential. It is also a nice mix of La Masia and buying in big names. I still think that the wings have potential to let the side down although i'm not sure where to find better options.
Messi will go eventually so I think will be replaced with Antony and Felix, Fati and Pedri will have to take up the role of talismen. It obviously won't have the same X-Factor of the golden era but I think there is enough talent and balance to be the best team in Europe.