I think Brown comes through next year.
As for Berahino, he has been highly thought of for a few years but im surprised he has only made the match day squad once and was not taken on the clubs pre season tour.
Players like Thorne, Mantom, Roofe etc all seem to have pushed ahead of him in the opportunity stakes and his tournament with the England u19s or 20's didnt seem to really work but hopefully this year he will get a chance to go out on loan somewhere like league 1 and we will see him start to develop.