That's the problem with having expectations on hardly any basis at all.
People big up the potential of a young player based on a few reports and perhaps a highlight clip or two (See Nemeth, Pacheco, Spearing, Partridge, Welsh, Mellor, etc.). They berate our managers for not giving the lads a chance.
Sometimes shit happens and a youngster is thrown into the deep end (See Insua, Ngog, etc.). If they manage to hold their own in what is huge step up, they are still considered shit and harshly criticised for not living up to the self induced hype.
It's silly. Yet it keeps happening.