Last week, Brex announced that it would be ditching its co-CEO model, and today, Equity hosts Haje Kamps and Mary Ann Azevedo are taking a closer look at co-CEO teams and the effectiveness of the structure overall. Brex, founded in 2017 by Pedro Franceschi and Henrique Dubugras, initially thrived under the co-CEO structure, with Pedro focusing on internal operations and Enrique handling external relations. However, as the company grew, this setup began to slow decision-making, prompting a shift to a single CEO model. Pedro will now lead as the sole CEO, while Enrique transitions to Chairman of the Board. We discuss the broader implications and challenges of co-CEO leadership, highlighting how this change aims to enhance agility and appeal to investors as Brex eyes a potential public offering. We also explore other companies that have adopted or abandoned similar leadership models, providing a comprehensive analysis of the pros and cons of shared CEO responsibilities in the competitive tech landscape.