Messi's leaving devastated the football world, and the club's financial woes make big-name signings improbable for the foreseeable future. The club requires its star players to take the initiative and assume the responsibilities that they have been avoiding up to this point. Koeman, for one, expects some of the players who he believes will be crucial to the club's future to improve their performances.
Moreover, Barcelona requires a captain who can both lead the squad on the field and with his numbers. Given the sums of money paid to and for players like Antoine Griezmann and Coutinho, it's past time for them to start living up to the exceptions that allowed Barcelona to pay as much as they did.
Further, Memphis Depay is a player who, based on his characteristics and position, should be a key player for Barcelona this season. Moreover, and having worked together with the Dutch national team, Koeman has great faith in his fellow countrymen. Since Depay's arrival, Koeman has made it clear that a lot is expected of him, and that the coach is certain that he has what it takes to flourish in the Barcelona colors.
In addition, others who will be forced to mature are the young players who are vying for a spot in the first squad. Koeman, like Pedri last season, will have no qualms with trusting young players as long as they deliver. Also, however, the situation with Ilaix Moriba is complicated, as the Barcelona coach has stated that he has young players in whom he has faith and who will provide him with different possibilities throughout the season.
Players like Yusuf Demir, Gavi, and Nico fit within this category.
We've reached the end of this piece, and we know that Barcelona requires a starting player to lead the team, whether it's Ansu Fati, Pedri, or De jong. After Messi's departure, no one is 100% sure who will save Barcelona's greatness.