We have this convenient way of assuming that once Doku has a bad game, Grealish would have just saved the day if he was playing. I’d be lying if I told you that Grealish has had a better season than Doku.
I even recall the match at Stamford bridge when this assumption was full blown. I have seen matches were Grealish or Bernardo or Kovacic or Stones came in, in the thick of the game and gave control back to us when we were on the cosh but at the bridge, Grealish in and Doku out was just a chaotic as it earlier was.