It could be me being a pessimistic so and so but I still wouldn't confidently say that 4/5 is in the bag. I think Italy's attacking shape will cause us problems with the way we defend. A couple of Italy's tries against France came from quick offloads from a player taking the ball to the line and getting the support runner into space - Ireland caused all kinds of trouble in the second half in Dublin by doing exactly that. Yes they conceded 73 points against France, but, this year's result not withstanding, we're not France. Our attacking game isn't in the same stratosphere as theirs.
Wales in Cardiff is never a formality for England and Sherratt got a monumental improvement out of them in less than a week that was almost good enough to beat a very strong Irish side (not withstanding a few injuries). The atmosphere for that last game will be unbelievable and we'll be playing against a desperate, emotionally charged team that always lift when they see the white Jersey. England don't normally cope well in that scenario. I genuinely think Wales will beat us.