Some are not so quick to lay the blame on the aircrew ...
This from a US metals investors forum ...
Asiana Flight 214 Incident at SFO | TF Metals Report
see also this link referred to in the link above ...
Feds Warn of Delays at SFO Due to Sequester Cuts | KQED News Fix
However the US NTSB 'shares out' the blame, the simple fact is that neither ILS and PAPI were operational. Added to which the number of air traffic controllers on duty may have been reduced by the US sequester (the automatic budget cuts applied proportionately to all Federal spending, following the failure of Congress to agree the President's budget).