Exercises that get a leadership team to say something specific.
A group asked directly what the company does will produce a paragraph everyone can live with and nobody would defend. The exercises exist to make that impossible.
Brainstorming onto sticky notes without a decision at the end. Voting on wording. Bringing in an agency to facilitate a conversation your leadership team needs to have with each other.
Agreement in the first hour usually means nobody has said what they think yet. The buyer evidence is what breaks it.
Everyone writing before anyone speaks handles most of it.