In real life lol. We could be here all day if we compared Top 11 to real life mate. If top 11 was close to accurate to real life, you would be able to use blue arrows and red arrows at the same time, as lets face it, wing backs, or wide players also asked to defend, go back and forth down the flanks so they'd have blue arrows and red arrows in place at the same time.
By the way, the formation I laid out is how Van Gaal has had Man Utd lined up in pre season, 3-5-2 with the two wing backs actually positioned to start on the left and right of the midfield in one long line of 5. And then of course before the game he would have drawn an arrow going back and an arrow going forward on the white board![]()