Just mentally going our current options for each position...
GK: Gunn/McCarthy...tick..Forster..cross
RB/RWB: Valery/ Ramsay (from what i've seen looks another excellent prospect)... tick
LB/LWB: Bertrand/Targett..tick
CB: Bednarek/Yoshida...tick Vestergaard (still looks slow for this level), Stephens (his last start was a worry).. cross..Alfie Jones might come into the picture next season.
CDM: Romeu/PEH...tick, Lemina (still not convinced of his commitment).. cross...Maybe Jack could be tried out in this position or Harry Reed is given a chance.
CM/AM: PEH/JWP/ Slattery/Armstrong/Redmond/Sims... tick Lemina (as above) Mo El... cross...I think that Boufal and Hesketh might come back into the fold next season.
ST: Ings/Long/Obafemi... tick, Austin...cross...The jury is still out on Gallagher for me, i'll trust Ralph on that call.
So that's 18 ticks and 5 possibles for next season.
Good summary, I'd have to agree with most of that, just havent seen the youngsters enough.