Before we all get too carried away with Martinez, I'm waiting to see when the defensive change happens.
This defence was built under Moyes, a defensive tactician who got at least one thing right - his back four. Built on solid foundations for Martinez to add his attacking players and knowledge.
The big question mark over Martinez will be his ability to replace Moyes back four. If he does this with success then we have a real talent on our hands. However, previously we have seen his sides ship goals. Put it this way you wouldn't see a Moyes side go to Anfield and lose 4-0. On another night it could have been 8-0. A scoreline, that we have seen Martinez sides get beat (or close to).
For me this is the major question mark. Let's see who he replaced Distin and Jags with. So far his only defensive signing has a red flag waved over his head. No pace and always injured.