I know when it looked like Grealish was going to be sold people were saying if Maddison went for £25m then Grealish was worth at least £30m. Having seen Maddison a few times this season, he looks a snip at that price. They are different types of player, but Maddison has been having a real influence on games in the PL. For all of Jack's obvious talent, I still think there is a question mark about his effectiveness.