Strangely, I didn't thing they worked too well together. They're too similar. The Swansea performance still sticks in my mind, so perhaps I'm jaundiced. But the lack of either of them starting at Wigan showed. Granero needs to assert himself more, be more aggressive. I'd go with Faurlin on Sat if I was Harry.
I can see Granero playing right side of a midfield 3, Ale on the left, and M'bia in the middle. That should work well, but Diakite does give more power and speed than Ale at least, which I think is one reason Harry hasn't picked him. The other is that Harry also seems to prefer Derry's bottle to Ale as well. The good news for me is that Harry seemingly has sussed that using Park is almost like playing with 10 men.