People have wanted Carrick's replacement for years and he isn't first choice for us anymore. We've played 4231 for majority of this season, going into next season assuming we sign Griezmann/James and another forward, that is #10 and #9 role fulfilled with 2 of Mata/Martial/Mkhitaryan/Lingard on wings. That leaves us with 2 players to form the midfield, who do you think people want to play alongside Pogba in a midfield 2? Clue, not Herrera.
I don't cherry pick 6 games at the start of season where entire Chelsea team was struggling to prove my point and are players not allowed to go on a poor run of form? Dunno where you are getting he struggled in midfield with Fabregas, Matic-Kante has been Conte's preferred midfield from very beginning. Fabregas played a total of 89 mins in Chelsea's first six games and after putting in a stinker of a performance at Emirates he was dropped and Matic was brought back in. Also Conte switched to 343 and rest is history.
I have nothing to backup?

You're making stuff up by saying he struggled with Fabregas when he was never in the side. I have Leicesters entire season of 2015/16 to back up my arguments.
Anyways this is my last post on this topic, this place has a long history of getting carried away after players hit a good run of form or have a good season. Smalling is best CB in the league, Shaw is best LB in the league, Januzaj is going to be Ballon d'Or contender, Fletcher is World Class, Chicharito is World Class, Wouldn't swap Martial for Messi etc. etc. Herrera is latest in a long line of players who have been extremely over hyped by the supporters. He is a good player and someone who I like a lot and want him to be the next Captain
but he's extremely overrated on this board.