That's not a terrible idea, but I can't manually change avatars. I can remove them, but I can't force someone to put on another avatar.
That also doesn't resolve the issue of campaigning resulting in people nominating the campaigners.
I suppose I could just institute a rule that says if you campaign you're automatically excluded from the whole shebang, but who makes that decision? And that's a pretty harsh decision for something that's supposed to be fun.
What about this - The week before this thing starts we elect a panel of five people who vote on whether a person is campaigning or not. That will not include any Mod - members only. Their decision is final, and a one-vote majority is sufficient.
If someone is judged to be campaigning, they are out of the running for that entire section of the Starting Lineup vote, and by section I mean, if they're busted during voting for Offense, they can't be elected to an Offensive position, but they'd be eligible for Defense or Special Teams. If busted during Defense, they're out for defense but would be eligible for Special Teams. If busted during Special Teams voting... oops.