From the other thread:
If things have been done in the 'usual way' (if that's even what we can call it) then it would maybe cost £20million or more to sack David Moyes? If this is the case, then if van Gaal is bit of a low budget guy who wouldn't want to make a magnitude of changes, then this would suit the Glazers. That apparent £200million transfer kitty could be cut by that £20million~ and van Gaal could probably make better user of that £180million over a couple of seasons than Moyes could with £200million in one. Just my opinion there, though.
However, due to Moyes' history of doing nothing (other than making the Champions League once and losing out in the qualifying round), I have to believe that this six year mega deal has many stipulations where Moyes was well aware he could lose the job without being compensated the full amount of money that his contract would give him. It would be such a bad business decision to risk that much money on an unproven manager at the top level.