Interesting comparison, and does have undertones of how Cole made his name to how Mourinho wanted him to play. Cole really had to focus in Jose's teams and I felt he struggled with that as it went against the honed instincts he'd been praised for throughout his career and very likely through the youth ranks, too.It reminds me a bit of Joe Cole and Jose, when Cole joined Chelsea, Jose tried to change him completely from the fun flair player that he was, to this more hard working team player, for me, Cole eas never the same, I can see Grealish following a similar path under Pep.
Reining these guys in is one thing, but wholly changing them does make you wonder what the point of the exercise is.