Seriously I don't get it when someone says who will make way.
We could have 25+ game left in little over 4 months, we will have injuries, players suspended and things like african nations then we have a world cup. Every player will want to get rest and to get fit , some may need or want Ops such as Barry and we should be looking after our best players and giving them breaks.
Viera doesn't replace anyone, he gives us the option to rest Barry or De Jong and still have two class holding midfielders, he gives us the option to make Kompany a centre back, he gives us someone else who can tell the other players about playing in the biggest games in the planet etc etc.
Now Viera is probably one of the few players in the world who has played in just about every big game you can in England, Italy and international football and he will be worth it I have no doubt and if he isn't he doesn't play and the only harm it has done us is 3m in wages which to us at the moment is errrrr... nothing
It is no lose, there is no downside..... end of