Son is letting Ange down but it's not because of a lack of effort but lack of quality.Going by the Matt Law article? Some senior players are letting Ange down. My mind jumps straight to Maddison, Johnson, Werner and Bissouma. Potentially Son but Ange loves him.
He's not as sharp as he used to be due to age and is ineffective when starting games. He would be a great option off the bench against tired legs.