The squad needs a couple of changes:
First of all, another RB should be helpful. With his positioning and the lack of offensive power, I don't see Balliu anywhere above Segunda. Unfortunately, Juste still seems to be injured, so we don't know what he can offer.
The CB might also need an overhaul. Muniesa is a great short-time solution but he won't stay next season. Either give Ie a chance or let him go. And stop playing Planas in the middle. Seriously.
The pivot thing is even more complicated. First of all, let Ilie, Espinosa and Ca go. Playing somewhere else is certainly better than being benched for Gus Ledes. The midfield lacks steel and creativity right now. Samper can only solve the issue of creativity, but playing him as the lone holder would certainly backfire.
Front: If Pep's "vertebradors" idea is still used, then Kiko will be gone this summer. Push Deulofeu left and use a classic RW to stretch the final third. Luis Alberto will probably return to Sevilla, so a new CF will be needed. So far, I wasn't impressed with Dongou. His off-the-ball movement is still not that of a senior squad player, so he rarely gets into dangerous positions.