The good point on 4-5-1V is the options you got if your AML and AMR are also ML and MR you could switch down to 4-1-4-1 and with two simple changes you have access to narrow Diamond (4-1-2-1-2), or down to 4-4-2 classic, which gives you a god Tactic set to play with if things won't work well. I wouldn't say scout players or special ability's are useless. But a good adjustable Setup helps a lot. I can't tell how much injuries I got this Season, but I had to switch quiet often, and even had to buy a set of backup players.