Business week in review

In profit ...

The sunny weather brought with it a big new job for departing Virgin Media boss Neil Berkett. On Monday he was named as the new chairman of Guardian Media Group, a move that is thought to signal plans to charge for the group's flagship national newspaper website.

On Wednesday, reforms of the Co-op in the wake of crisis in its banking division moved on apace with the appointment of Richard Pennycook as group finance director. He joins from supermarket chain WM Morrison.

Marks & Spencer boss Marc Bolland saw his short-term bonus rising by a quarter to £829,000 on Thursday.

...at a loss

AstraZeneca chief executive Pascal Soriot was forced to write-down £93m on Tuesday after the pharmaceutical giant was forced to dump a new arthritis pill. Fostamatinib caused patients to suffer a number of side-effects including the common cold, in what was Astra's sixth drug failure in recent years.

Manny Roman, the head of Man Group, endured a miserable Wednesday when the hedge fund spooked investors when it was revealed key AHL fund's fortunes had tumbled in recent weeks.

On Thursday, Network Rail boss Sir David Higgins saw the organisation's growing debt burden – not more than £30bn – hit the headlines.