BT Global Services CEO Hanif Lalani is to leave BT to pursue personal business interests after 14 months heading the troubled BT division.
Lalani will be replaced in March by Jeff Kelly, the former head of HP/EDS's $10bn business in the Americas. Kelly, a US citizen, served almost 25 years with EDS.
Last year BT Global Services lost £2.1bn on sales of £8.8bn. BT said Kelly's task will be to build on Lalani's work in stabilising the business and returning it to profit.
The division, which produces about 38% of the telco's turnover, recently won new business at South African oil-from-coal producer Sasol and Italian fashion house Roberto Cavalli, and was highly ranked by market analyst Ovum in its survey of large telcos' enterprise strategy.