Well in soccer you can run back and forth and not contribute to the game.
Not for long. Every position is critical. The running is to cut off passing lanes, open the field for other players, draw defenders, etc. If even one player is not doing the right thing, the other team will take advantage of it. I used to think that people were insane when they said soccer is boring. But I think it's a little like baseball. The batter shifts position a bit, and then the infield and outfield suddenly all change in response. I don't get it, because I don't understand the intricacies of the game, but I can appreciated the ability that such fine responses require.
I loved coaching against guys who thought there were "useless positions" or places you could hide a poor player. Everyone of those is a weakness to be exploited.
One of my daughters was a midfielder. When she transferred to a different school, they made her a forward specifically to draw defenders. She had great dribbling skills, and could hold onto the ball under pressure. Eventually, she'd get in front of the goal, draw off several defenders trying to stop her, and another forward would be open to shoot. Quick pass, and it's an easy goal.
At least in baseball even a no-hitter demands the outfield to remain sharp and field extremely well.
The technology of attack is so well worked out in soccer that a single error by the defense is often enough to decide the game.
To say nothing of the catcher calling the game.
Watch the keeper during a soccer game where he never has to touch the ball. If he's good, he's directing the defense, and his direction has much to do with the reason he doesn't have to touch it.