Barcelona will have to move very seriously if they want to have a more competitive squad next year. And unless Braithwaite becomes a world-class player between now and May, the position that must urgently be reinforced from July 1 is the center forward.The loss of Luis Suarez until the end of the season has been a blow for the Catalans, but it seems that it has been even harder than in a team that is valued at more than 1,000 million euros there is no substitute in the middle of the year to cover the absence of the Uruguayan player, and you have to resort to a patch from the Leganés to try to cover it.Without this sounding like harsh criticism of Braithwaite or a lack of respect for Leganés, I repeat that Barcelona must sign for the season that is coming a world-class striker. Today, and seeing what the European market offers, I think that the best option for the club (so far) chaired by Josep María Bartomeu is to sign Lautaro Martínez.It is true that Lautaro is not a '9' classic striker, but I think that favors him, even more, to fit in Barcelona. In Inter Milan he plays with Lukaku's reference to the side, and in Barcelona, it could be not only a substitute of many guarantees for Luis Suarez, but also a very good complement for the charrúa player.As if that were not enough, in the Argentine national team Lautaro has already shown that it is understood with Messi. I have argued many times that this is an advantage for him in order to sign for Barcelona, and I continue to do so. Messi is the best player in the world and it doesn't seem like a bad idea for the Catalans to build a custom-made team for him. With Lautaro, of course, they would be doing it.The strategy to be followed by Barcelona in the next summer remains to be seen. The first step does not seem to repeat the hopes that they have had in the last year at the time of undertaking a signings (Neymar, Di María, De Ligt, ...) and the second if they go for the Argentine, it would be to negotiate with Inter, they will not make things easy. However, if I were Bartomeu, I would certainly go for Lautaro Martínez.