The biggest problem of yesterdays match was the attitude. It is not acceptable. This attitude is something Sir Alex could never allow.
Darmian and Blind were really bad, yes. But we hit the post two times, the ball was kicked out just on the goal line, Martial couldn't beat the goalkeeper and Lukaku with a miss alone against the goalkeeper. Something that doesn't happen for first time this season to him.
I think Lukaku has to try harder on training to play one on one versus De Gea and to try pass the ball into the corners of the net instead of kicking with full power (like in the match with Newcastle). He needs to show more class in front of the goal.
I am a bit disappointed with Herrera. I really like him but yesterday he didn't show that he wants to fight back for his place in the first squad. His every touch was a guarantee that we will slow down the attack. He was not playing with his first touch. Always had to stop the ball, make a second touch and then pass to right or left, without trying to make lethal pass forward.