I was surprised Kondogbia went to Inter, he seemed like a really good choice for several clubs including ourselves and Arsenal. I hope your confidence is well placed mate, I might be a bit cautious but I do like the fact I've seen a lot of Schneiderlin and know he can play well in the PL.
I think the midfield can be mixed and matched to a degree, the best example I can think of is when Juve have Pirlo sitting and Vidal and Marchisio as the box to box CM's in front of him doing the leg work. I think we could use Herrera and Schneiderlin this way very effectively, with Herrera getting extra attacking license.
Very talented player and when on his game he's great to watch, but he does seem switch off mentally too often.