Carphone Warehouse chief operating officer John Durkan and retail managing director Anthony Catterson were this week asked to step down from their roles by UK chief executive Andrew Harrison.
Harrison is to seize control of the UK business again after overseeing its expansion in the US and Europe.
Durkan and Catterson both turned down new roles within the business.
Said Harrison: "I take direct charge of retail, trading, and marketing functions and all the support functions. There were lots of layers in the organisation – too many chiefs"