Yes but no one really knows exactly how it works except that they tire faster. Some believe the player is moved up one position in the field when your team has the ball and some just believe it boosts the attacking stats on behalf of the defensive ones. The developers have been vague on the issue but saying that AML/AMR with red arrows actually becomes wing attackers whatever that means in response with critique against only being able to have narrow strikers.
I have had positive effect "what I believe at least" with these kind of players "AML/AMR" red arrowed when up against 3 narrow defenders.