Due to differences in the rules for ICUP and 4CC, the current team is illegal. It looks beautiful and everything but needs new tactics.
As I see it, the options:
1) Someone here make legal team tactics, even if super basic (choose 1 gold player, 1 silver, 2 bronze, a formation (drawn or using
https://www.buildlineup.com/ ), and deciding short/long passes + counter-attack/possession)
2) I can try and benevolently shove their team into our rules and hope it still makes sense.
3) [unlikely but possible] A 4CC /f/ manager could design tactics, despite the different PES version and different league rules.