We don't have anyone similar in style to Kovacic his style doesn't flatter him, he doesn't seem to doing anything to most but he's effective at doing his job and stays in position, He's technically very efficient a Croatian version of Jordan Henderson as horrible as that sounds it's not a dig at him.
I'm just saying if Jordan Henderson had much much better technical ability on the ball he might play a little like Mateo Kovacic... Kovacic is different in style to anyone that we currently have and I think that's what Pep wants a little change, just a good ball playing midfielder who will recycle possession mistake free, while staying in position to the left of Rodri and able to deal against a good press due to his technical ability.