The fact that you've just referenced Manu Garcia as some kind of proof that some won't make it shows that you're literally spewing nonsense based on little substance.
He's been injured for weeks ffs. Before that he was making his first team debut and scoring. He made his come back today in a subs appearance, and he's just turned eighteen too.
Kelechi is a great prospect, brilliant in fact. But he never had a single game for the EDS last season as good as the one barker had today. Fact. Barker may not make it, but there is literally no way we could know yet and if you could watch today's game and not think he could potentially one day be a star with a little luck....well, 99% of young footballers should give up. To suggest otherwise is totally unfair.