IMO. Kante &a Pogba in midfield 2 is the problem. In other games, it doesn't stood out like a sore thumb but the sign was always there. Either one having frustrating game, but never both have on par great game together.
IMO, it's due the fact that both players are the type need to stand out to do their thing. They ain't the type to take a quiet role. It's similar to the feeling of having Lampard and Gerard in the same midfield despite, there is no question in both players' quality.
What I believe the key in this conflicting partnership is Kante's one dimensional style. For example, Kante looked energetic breaking up play in second half vs Lux. but he was flawed in a team trying to break down a bus. There were many instance, he passed too soon to the crossers, whom understandably would get pressed on ball thus rushed thing further, leaving the front men less time to work to lose their markers/getting into good positions. I mentioned this because this is one aspect is what Busquet is not fully understood by many fans. Busquet passing for majority of time look very ordinary, but his role is important in that his passing is very kind for teammates. He usually doesn't miss the rhythm (pass too soon or too late). Kante simply tried to pass the ball quickly to a supposed free teammate, while at the same time leaving the other players with so little time to get into position to become passing option. In the second half, there were so many times, Kante ignored the central and primarily & preditably get the ball out wide. Other times he won the ball in central area and immediately passed it while the central players ain't ready, thus losing the ball right away. This is unkind ball for teammates, I am trying to make the point.
Kante ain't suited to play a patient game breaking a bus parking tactic. You know shtf when you start seeing Kante in supposed primary deeper defensive role having many touches on the ball. He congests his team own space by pushing up unnecessarily while at times, not provide passing option for his CBs. I know it's more of Koscielny brainfart, but one of his mispass in second half was due to Kante in bad position in my book.
Back to Pogba, there is no doubt about immatured/inexperienced aspect in his game. He can still easily lose his head thus affecting his overall performance. However, he has ability to help the team in this type of game with the right tactic. Deschamps IMO had a blunder this game as he ended up not building the tactic around Pogba best ability but used Pogba toward the end as Fellaini role when Giroud got taken off while having Kante running the midfield the wrong way against a deep defending team.