After more than seven months since he won election as president in Africa’s biggest economy, Muhammadu Buhari named his cabinet. Below, a guide to the key members:

Kemi Adeosun

Kemi Adeosun
Kemi Adeosun
Source: Ogun State

The U.K.-born 48-year-old finance minister was previously the finance chief of the southwestern state of Ogun. A former investment banker with Nigerian company Chapel Hill Denham Ltd., she has backed the central bank’s currency controls, saying a devaluation of the naira would be no “silver bullet.” Her first major task will be to present the 2016 budget, at a time when Buhari intends to ramp up spending while revenues in Africa’s biggest oil producer have plummeted.

Emmanuel Kachikwu

Emmanuel Kachikwu
Emmanuel Kachikwu
Photographer: STRINGER/AFP via Getty Images

Minister of State for Oil Kachikwu, a Harvard Law School graduate, is a former executive vice-chairman of ExxonMobil Africa. Buhari appointed him to lead the state oil company, the Nigerian National Petroleum Corp., in August. Given a mandate to purge the NNPC of corruption and modernize its operations, he has called for deregulation to boost growth in downstream oil and gas. As minister of state, or junior minister, he will probably report to Buhari who is widely expected to oversee the work of the ministry himself.

Babatunde Fashola

Babatunde Fashola
Babatunde Fashola
Photographer: Pius Utomi Ekpei/AFP via Getty Images

Minister of Power, Works and Housing Fashola, 52, was Governor of Lagos state, home to Nigeria’s biggest city, from 2007 to this year. A lawyer, Fashola has a reputation as a hard-working technocrat and is widely credited with overseeing improvements to the infrastructure and security in Lagos, the nation’s commercial hub and biggest city.

Okechukwu Enelamah

Minister of Trade and Investment Enelamah, has an MBA from Harvard Business School and is a former banker with Goldman Sachs Group Inc. in New York. Before his appointment, he ran African Capital Alliance, a Lagos-based private equity company. Known as Okey, his task will be to sell Africa’s biggest economy to global investors in the face of slowing growth and lessen the fallout from the country’s $5.2 billion fine on the local unit of South Africa’s MTN Group Ltd.

Chibuike Rotimi Amaechi

Chibuike Rotimi Amaechi
Chibuike Rotimi Amaechi
Photographer: Pius Utomi Ekpei/AFP via Getty Images

Minister of Transportation Amaechi, 50, served as governor of the oil-rich Rivers state and joined Buhari’s All Progressives Congress party after defecting from the then-ruling People’s Democratic Party. He has cited among his achievements the construction of a 1,500-kilometer (932-mile) network of dual carriageway roads, three bridges, two flyovers and two interchanges.

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