Report this week suggested that a closure of The Observer or its relaunch as a weekly magazine was one option being explored and, in a memo to staff yesterday, McCall admitted "a wide variety of different options, approaches and scenarios is being developed".
According to a report in The Times, GMG is in the middle of an operational review, led by Alan Rusbridger, the editor-in-chief, with initial results expected in the autumn.
The purpose of the review is to secure the long-term future of The Guardian, The Observer’s sister newspaper.
GMG is owned by The Scott Trust, which was established to protect The Guardian but not The Observer.
Guardian Media Group admits it is considering Observer closure

LONDON - Carolyn McCall, the chief executive of Guardian Media Group, has admitted that closure of The Observer, its Sunday newspaper, is an option as it attempts to reduce debts of close to £90 million.