Sorrell, Carphone Warehouse, Pret: Everything that matters this morning

Former WPP chief Sorrell set to make comeback
Former chief executive of WPP, Martin Sorrell, is to become executive chairman of new marketing company.
Sorrell, who stepped down just six weeks ago, is planning to announce becoming chairman of a small financial holding company which he intends to build a “next generation marketing services group”,  Sky News reports.
The ad industry veteran is understood to be committing £40m of his own money to the new venture, with institut