IMHO, Mousavi, Karoubi, Khatami, and Rafsanjani have to all make speeches and ask for Artesh and regular Sepahi forces not affiliated with the coup commanders to fully join the people and defend the peoples' rights. They might get arrested but they'll be heroes in peoples' eyes for doing this and will most likely result in most regular forces of Artesh and Sepah joining the people and defending them. The people need Artesh to defend them against basiji thugs and protect them.