I just don't agree. A football field is a HUGE area of land to cover, and you're potentially going to be talking about progressing from a WR on one side near the LOS all the way to another who is across the field and way downfield. You're potentially talking about having to move this target more than 100 yards just to progress from one WR to the next. It works in FPS because depth isn't as big of a factor, so you mostly just have to aim side to side and only make slight adjustments up or down, and because you aren't rapidly progressing through targets that are so far apart.