It was a midfield three with Golovin. And that's not even how he has mainly been used by Monaco. he has mainly played with Fabinho, Moutinho, Aholou and I forgot Benasser. I mean you are basing your theory on a player that signed for Monaco in January.
Is Golovin not that Russia guy at the world cup? He's a no 10. That makes it even more crazy. I mean Monaco had two no 8 and a no 10 in the midfield (we could even say, it's was just a no 8 because Fabregas is more of a no 10 than a no 8). In essence, Monaco has Tielesman as the only no 8 against Strasbourg. It's no wonder they were whooped.
I actually thought Monaco did a good business with Leicester by swapping Adrien Silva with Tielesman. They needed a holding midfielder to compensate for the loss of Fabinho and Adrien was able to do that whereas Leicester already had one in Mendy and there was also, Ndidi who could play as one.
Monaco should have also brought in Bakayoko's replacement (box-box midfielder) to complement the holding midfielder but at least, they could say they replaced Fabinho.