I thought the red arrows were to go forward up the pitch and the blue to stay back.
My thinking was that when playing a dr/dmr player, I could play him in the dr position and if I activated the red arrows, he would play a more advancing type of match.
Is this incorrect thinking?

Also on mentality and arrows, When playing Mentality in Normal with Red Arrows, is this the same as playing Mentality in Attacking without arrows. Please help correct my thinking.
Or does Mentality apply to the entire team and Arrows for selected players