pauloolivieri
That was the tactic I was trying to achieve. I was tired of the unbalanced 4-3-3 options with players occupying the same space, specially in the wings. And even more tired of lone strikers being useless and lost amongst the opposition defenders (they only work properly for me if there's an AMC behind).

So far, I've managed to achieve some success with two @RDFTactics tactics (Bielsa's with Milan and Sacchi's with Arsenal), but that wasn't enough. I've tried some approaches based on the Strikerless guy ideas, but they didn't work. Then I tested this one in an unsuccessful save with Sampdoria and things just happened. I was going 4-3-3 and made my signings based on it, so I still don't have the players I need for the season. But it's working. I'm using mostly the Light Blue, playing more defensively, and got impressive results against Juventus (3-3 away, they scored from an IMPOSSIBLE free kick at 90+3), Milan 2-1, Roma 3-0, Lazio 3-0. I'm currently in 7th (had a bad start), but possibly will manage to get at least a place for Europa League.

The interchangeable movement of the players is great. Wingbacks switching from going inside/outside, the CM-at making late forward runs makes him my most dangerous player (now who's FMing here, huh). I have Onyeka (originally intended to be a B2B) and Jankto playing there. Onyeka is super fast, but lacks finishing. Still doing fine. Damsgaard and Gabbiadini are doing good as well as the SS.

As my SSs play near the midfield, I often ask them to man-mark the opposition CMs when playing a stronger side. And my wingers to mark their wing/fullbacks. This kills their chance creation possibilities. Also I removed the long throw-ins since it was causing more counters for the opposition than any good to my squad. I will need a player to suit the CM-at next season. Otávio from Porto was my main target, but he's not willing to join Samp now. He's quite a great player, I buy him every save. So I will need this Lothar Matthaus kind of guy, as it seems to be my main role.

Will come back for updates.