Yeah having a reliable DM can elevate every single player on the pitch. Casemiro allows both fullbacks to foray forwards and stretch the opposition as wide as possible creating spaces for Ronaldo, Benzema, Isco, Modric and Kroos to press and overload the opposition without having to worry about turnovers in possession, Even Varane found himself bursting through into Juve's box tonight. Zidane has revolutionised Real Madrid in a similar fashion to Pep at Barcelona and Casemiro has been the engine to that process.
I think Mourinho's defensive 4231 is extremely outdated and predictable in an attacking sense and adding just a player like Fabinho and an attacking left back like Mendy could elevate and balance our team more than any Galactico style signing could. At the moment teams know that if they shut down our right flank and pin down our 2 man midfield we don't score and that has to change, ironically i think that change starts at 2 defensive
positions.
I hope Mourinho has some good signings like this lined up and he takes some time out over Summer and allows himself to catch up because our system was broken for the majority of the season and it doesn't look like he's grown form a tactical standpoint since his first stint at Chelsea. It's like he found his winning formula and stopped but football doesn't allow pauses and there is no constant winning formula when the teams around you continue to adapt and grow, just look at Wenger.
Or maybe our lack of depth in midfield and Carricks ageing legs gave him no choice but to switch from the attacking 433 to the 4231 and i'm reading too much into it, but if that's the case then why did he sell Schweii and Schneiderlin and refuse to play Blind at DM??. I guess our signings will tell us a lot about the football we will play next season. Fabinho or even Dier would undoubtedly improve us a lot though as long as we exploit the attacking freedom a defensive midfielder like them brings and we buy a left back who can do more than stand around in our own box. If we're served up the same defensive tosh and it doesn't come with a league title or CL then we need to start looking for a fresher manager.