He's not worth £30m, but Richarlison isn't worth £50m, and Allison isnt worth £70m, but you have to pay over the odds to get your talent don't you.
The lad has a lot of raw potential, if he can get a run of games, i reckon he will flourish. Putting him in and out of the team every 5 seconds will never give anyone any confidence, see Klaasen, Sandro for example.
Give him a run, and if it's not working, then we know we'll have suitors.
What happens if he said he wants out though??