[Sasha]

Even in regular games, fitness is a huge help. I'm quite small and quite fast, so as long as I keep my gear light, I can get almost anywhere on the field and attack from almost any angle. I also know a few people who prefer to move slowly, but who make up for it with stamina and the ability to carry quite a bit more than little old me. Both approaches work, but both require fitness.

What doesn't work is when a player can barely keep up with the team, cannot react quickly to unexpected events, has a constant childbirth face on and seems incapable of thinking of anything but putting one foot in front of the other. People like that can hold a fixed position, but in the event motion is necessary they usually have problems and often injure themselves.