There are plenty of problems, many of which are Moyes' fault, but they aren't nearly as bad as you're implying. No manager could get top four with the current squad? I beg to differ. £200m+ is what would be required to get a team that competes with Bayern and Real Madrid. Nobody is expecting that, at least not short term. With the right manager and the right funding, we can easily assemble a team that can compete with Arsenal and now Liverpool - no problems. Man City and Chelsea could be another matter if they spend as they can.
Sure, some rebuilding needs to be done and this is well documented, but that's just something we'll have to get on with. Most people on here and in general thought we'd get top four, absolutely no question at the start of the season. A squad so obviously in decline couldn't have evaded everyone, surely.
Then again, you are a Liverpool fan if I'm not mistaken, so you're bound to be fighting Moyes' corner.
Anyway, this is interesting (and pretty bad for Moyes):
http://www.bbc.com/sport/0/football/26614180
Rough.