Don't think there was much wrong with a lot of the signings, you could certainly make a sensible case for most of them really. The only one I'm unsure of is Klaassan, not because there might not be a decent payer in there somewhere, eventually, but because we just didn't need him. You could maybe argue that we didn't really need Sig either and certainly not at that price but he came with a decent pedigree so you'd have expected him to have shown more so far.
I just don't think we have a manager with either the man management skills or the tactical knowhow to manage a team at this level. His ego and personality might get in the way too. Maybe Walsh fucked up with the striker situation and another centre half but we signed about a dozen players this summer across both age groups, to expect him to find us basically a whole new first team in one summer was a big ask of anyone.
There is enough talent there to be playing at a higher level than we are at present, that's down to one man.