This partnership needs to be the basis of our next team. When you have such chemistry, and it is still in its elementary stages, you must run with it. The third man in this equation is absolutely crucial though, as he would need to provide a more direct threat. I have no doubt at all that Januzaj can be that man to run defenders with and without the ball, and also grab 15-25 goals a season too. He is probably a year of physical development and experience away from that, which may present a decision as to whether we go for a wideman this summer or not. If we signed a Reus or so, I'd expect Kagawa to ultimately lose his place in the team eventually once Adnan peaks.
I think a line of:
Januzaj -- Mata---Kagawa
will grow into something very special if given a year and the right support behind it. All reports suggest an interest in Carvalho, but if Moyes is insistent that our next midfielder is coming to partner Fellaini then we have a problem. However, if we can get Carvalho is alongside a more dynamic midfielder with creativity, I would say we have all we need. Basically, somebody like Anderson on his very good days would be perfect for the role next to Carvalho. He can run both boxes, has strength, penetrative passing and more recently a decent share of goals. Excluding Vidal as a viable option, a fit Gundogan would be my preferred choice (or a punt on Mateo Kovacic). If that is no possibility, I firmly believe that Ross Barkley has it in him to become a Vidal-type of 8, strong, ability to run between both boxes and carry the ball as well as pass it. He will undoubtedly also contribute 10-15 a season once he peaks too.