Rebuilding after relegation is quite normal though surely? For example, Lee Sinnott's first Alty side only contained 5 players who had started Ken McKenna's final game in charge a few months earlier. Incidentally, that is the same number of players from last season’s first 11 who started our game against Gloucester last Saturday…
Neil Young only actually released about 8 players from last season’s squad (after a catastrophic and heartless relegation), and I wouldn't have argued with any of them leaving. A couple more left for economic reasons, or to play at a higher level, but you have to accept that's just what happens when you get relegated. Particularly if you are needlessly relegated with players that should have been capable of staying up.
As said by others above, the problem with Neil Young is that he was a sh*t manager who signed (a lot of) sh*t players. Not who he released.