As his is mainly his contractual wage plus some compo he is legally entitled to 100%. As are Cocu and his assistants (and possibly some other departees?). Same goes for HMRC. They are legally entitled to 100%.

From bits and pieces in the press it looks like there could be as much as £40M owed to preferred creditors legally entitled to 100%. Might that be a stumbling block?

With regard to Keogh, he says he still "loves the club" in which case he may well go for a discounted deal.

No idea with regard to the Dutch coaches.