Like the title says. I think the only way to satisfy the whole community is to introduce both modes.
Arcade mode shouldbe very similar to the gameplay of the actual version.
In the simulation mode passing, shooting and defending are more manual. It should not possible run the whole match and the gameplay should be much slower.....
Without these modes every change in gameplay you make one part of the community angry. With the suggested modes its much easier to make changes without hate in the community.