United were unable to make it three wins in a row in Europe as they succumbed to their second loss in four days following Sunday's humbling by Arsenal.
Although Martial made it onto the scoresheet for United, his goal only proved to be a consolation and Scholes questioned the Frenchman over his lack of movement.
"The movement from the centre-forwards was virtually non-existent," Scholes said on BT Sport. "Anthony Martial, the amount of times I looked up when a midfielder had the ball, he was just stood in between the two centre-backs doing nothing.
"I'm a big fan of Martial but the amount of times I looked up and he was walking, he has have to realise as a centre forward - every now and again you have to move if you're going to score a goal.
"You can't just be walking in front of two centre-backs doing nothing.
"When a midfielder player has got time on the ball - I look up he's walking, Rashford is coming to the ball - it's not his strength. Sometimes experienced players like a Matic have to tell them. They almost need coaching through a game."
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