Anheuser-Busch InBev (A-B InBev), the world’s biggest brewer, has begun the process of looking for a successor to its chief executive Carlos Brito. The Belgium-based brewer of brands such as Budweiser, Stella Artois and Corona, is considering external candidates as well as one internal candidate – Michel Doukeris, who heads its North America-based Anheuser-Busch business…