'Ridiculous' - but as soon as qua intervened the system has become possible?
What's even more ridiculous is that in your original post you said it wouldn't work because OX and Sanchez don't make runs behind, but in response to qua it could work if Arsenal get a good DM.
Aren't you capable of thinking for yourself?
Also, note that I left the DM position empty:
Wilshere DM
OX Ramsey Sanchez
Ozil
As qua rightly said, the space left by Ozil would be occupied by the OX, Sanchez, Ramsey, and even Wilshere, whilst the DM, whoever he may be, will sit and protect the defence.
Replace the OX with Walcott when he's fit and this system has just become better - to claim that it is ridiculous, even without Walcott, is downright stupid.