why not have an anti-Pioli rally in the Arrowhead parking lot before the Oakland game, while the banner flies overhead? the media is not going to keep reporting the same banner-over-KC story every week. remember, they are all basically sharks; constantly swimming after their next meal, and a public display of fan discontent would be some very red meat.
if a rally to overthrow Pioli happens, we'll have gained another week's worth of media egg on his face, and kept the snowball rolling. If the creepy CIA goons or cops step in and stop it, they are fan bashing on behalf of the great dictator, and that's also another week's worth of egg on his face.
All that's really needed is someone with a megaphone who enjoys running their mouth, loves the spotlight, and has a flair for the dramatic. Everyone else only has to not act like an OWS reject and make noise on cue, and whattayaknow, you've got yourself a full blown public spectacle on Clark's front porch.