I was tearing my hair out with Rafael yesterday, when looking at his attacking performance.
Thought he defended well, but think he could take a leaf out of Evra's book in terms of his forward runs. Evra makes some quality forward runs - he really penetrates and gets into good attacking areas.
Rafael tends to get about three quarters up the pitch and then stops. Doesn't make enough good old fashioned overlapping runs that create space for Valencia.
It's funny, because the cliche is that he has defensive deficiencies. In my opinion, they're few and far between. It's his forward play that needs work:
a) making more intelligent runs
b) taking more time when in possession (composure)
As with any young player, his best form happens when he gets a good run of games. Needs to steer clear of the injuries and he'll be a cracking player for us.