Lets say that many things yo touch in the game have a impact of the 4%-8%... a arrow is one of these things.... the players have a base, and usually are focussed more in attack more in defense, a red arrow in a ST dont ean he will not hel in defense but, should increase the options to be focussed in attack, "slightly"... despite all when one have a countr against the game have t select, "is forced really to select" a player to defend, and then I gus there are ratios of probablility that are what decide what happens, more or less, so, a red arrow do not guarantee you to see a player staying as a statue in the attack zone, as, a 9* playr is not a guarantee of more goals than a 5* player for the intrnal programmng limitations set by default.