in berlin, we had a tevez-morata-llorente trio (not a completely midfield focused team at all), and we faced the last great barcelona side of the decade.
in cardiff, we had the weakest midfield of the last 7 years and we choked accordingly.
i think dybala, mandzu, costa, berna and cuadrado are good enough to fight for the cl. pjanic is fine, too. i'm not sure about emre can yet. but i'm almost positive that in 2019, you won't win the cl with either of khedira, matuidi, marchisio, bentancur and sturaro in the starting lineup.