I think Suso owes a lot to Rodgers. He gave him multiple first-team starts this season, and I think that he was taken off mostly because he tired towards the end of the games. I agree though, a season-long loan to a lower PL club would be great for him.
I think subbing a player at half time, usually looks like that player has disappointed int he first half. I'd rather he gave him 60 minutesand then would sub him because he was tired. It is just a little point, which can boost a youngsters confidence.
I hope we loan a lot of players next season - Suso, Coady, Shelvey, Robinson - maybe even Wisdom so he can play centre back regularly.