If MRA4 was cancelled to save £200M a year, that implies CDS, CAS, Cameron and others (with Dr Fox seemingly an honourable exception) didn't want to make difficult decisions, as they claim, but took an easy option.
The difficult, and correct, decision woud be to target the reason why MoD wastes vast sums of money, is routinely castigated for doing so, yet steadfastly refuses to do anything about it.
But that would mean implementing existing regulations. Now, there's an idea.