He's very raw. You can see why they took a punt on him, and there might be a player in there, but even if Mateta goes it's hard to see how Uche gets signed now that they've paid out for Johnson, Larsen, and Pino, having already paid out for Nketiah, and with Sarr being the best performer of the lot. That's without Guessand, and also without leaving a spot in the squad for any of the academy prospects.
He's got no chance of being here next season.