In 2/3 years, provided they both develop, I think it could well be a good enough pairing for a top 4 club. But neither player is there yet individually, never mind as a partnership. Can you imagine if they lined up against Real or Barca in the champions league.
They certainly looked good last night as a pairing, and gave the talented Foden freedom to influence the game in the final third. But you have to remember who we were playing. The game was so one sided it could have been double the score, literally. Their keeper played very well plus there were more than a few sitters missed (Davies missed an open goal from 6 yards).
Patience Zat. Gana is good to go until the end of next season at least. Filling the starting XI with youngsters now will do them more harm than good.