Weak, weak, weak England...this series was a throwback to the "Aussie whipped" years of the 1990s.
I think that there was a lack of leadership on the field and Beefy on Sky was suggesting that the players were "scared of their own shadows and appeared to be batting to order and not playing their natural game" in a clear dig at Andy Flower. Mitchell Johnson is fast and hostile, but he is just one man and he should've been seen off and then make hay against the other bowlers...this was basically the same attack that they faced in the summer.
The worst thing about this mauling is that it has damaged the team psychologically and some players may not recover for a while or ever at test level, it would appear to be a good time to try some new blood as Ben Stokes was about the only positive thing to come out of this debacle.