Tadeu is responsible for spurring growth on a continent where AB InBev didn't have a foothold before completing the purchase of SABMiller in September. About 65 million people are due to reach the legal drinking age by 2023, creating an opportunity for brewers, although Tadeu must also tackle slowing economic growth across some of the biggest markets. South Africa, where SABMiller first set up shop in 1895, expanded 0.3 percent in 2016, the slowest pace since 2009, while Nigeria is in recession after the collapse in oil prices hurt its biggest source of revenue.