Well, you probably know my opinion as we discussed Coutinho's role at the club and his failure to succeed a few times. Me being one of his harshest critics and warning of his signing beforehand if the idea was to replace Iniesta.
My post was more intended to open some sort of debate and to get inputs from other users who might think that it could work with FDJ and Arthur and him interchanging positions with Griezmann if the latter ends up playing on the "left" as expected in a 4-3-3 if we end up actually implementing that formation. Resigned to Valverde continuing to mess up tactically and likewise resigned to Suárez playing most of the time when ready.
However it would be interesting to see if it could work in theory. Ideally with a new manager.
It'd be very unbalanced. Alba, Coutinho and Griezmann to the left and on the right flank we'd have Semedo/Roberto and Arthur. Theoretically the right side would've needed an offensive midfielder like Coutinho instead.
4-4-2 could work with Coutinho as LM and Griezmann RM, both comfortable in these positions. The problem though would be the CM's. Arthur and Frenkie should always start, but Busi and Raki would NEVER be benched together.
Another interesting formation, which although might lack some warriors like Suárez and Vidal, would be:
Dembélé - Messi - Griezmann
Coutinho - Frenkie - Arthur
Messi in a free role with Griezmann cutting inside á Villa/Henry.