Well, wirhout the addition of any first-rate talent like Nico, Flick will have to field his most talented players available, regardless of the positions they have played in the past. Assuming Gundogab leaves, until Gavi, De Jong and Aruajo return:
GK: Ter Stegen, injury or suspension disastrous, just like last season.
FB: Kounde and Balde. Although no proven depth is available yet, Balde is much better than Cancelo.
CB: Excellent depth, even wirh Aruajo out. Flick will optimize pairings of Cubarsi, Christensen, Martinez and Garcia.
DM: No double pivot until the injured return. All the attackers but Lewa must track back for 90 minutes. Bernal, Casado, Chistensen, Garcia.
Attackers: Much improved, scoring will be up. Again, big minutes for Lewa and Lamine. Someone must appentice to back up old Lewa (Fermin?). Then you have Fermin, Olmo, Pedri and Raphinha for 2 positions, this is a huge strength even with no natural LW.
Maybe Ferran and Pau can help, but their chances will be minimal barring injuries.