Frank was there, and tried to mediate the any disagreements that came up. "If we want to take down the Ministry, we need public opinion on our side," he said in response to Sirius and Alice. "Lee's show is brilliant, but it's not enough. Maybe if we could get the Quibbler more involved?"
He also emphasized his opinion that they should maybe separate into groups to focus on different areas of interest, and not just because it might cut down on the arguing.
Everyone kept pointing out that Dumbledore couldn't be counted on to lead, so he tried to lead in his way, which was mostly to make sure everyone got their time to speak and make sure Sirius didn't make fun of Snape too much.