There could be a few alternatives actually that might make sense.
1) Play him as a defensive midfielder. He has played there for Pep. Considering that teams like to press us, he would totally take the piss out of majority EPL teams who press, considering that he is one of the most press resistant players right there. Under any circumstance, I think that he would be better than Matic.
2) Play diamond if we miss Sancho, with him and Pogba playing in the center, Matic as a defensive midfielder, and Bruno at the top of the diamond.
3) Do what we liked most for the last 10 year, and play attacking midfielders as wingers/inside forwards, essentially play Bruno where Mason plays, and Thiago with Pogba and Matic in midfield.
4) Make him compete with Pogba and Matic.
So in any case, I think that he would add a lot to us, considering that he is better at dictating the game than any of our players, passes better than any of our players, and is as press resistant (if not more) than Pogba.
I think he'll go to Liverpool though, and be their best midfielder (at least until he get injured).