In a letter to all comms staff last Wednesday, Jenny Grey announced her appointment to lead comms in the 'transitional period' as the Government deals with the deconstruction of the COI.
The senior official has been handed the temporary role in addition to her existing job as director of policy comms for the combined Number 10/Cabinet Office directorate.
Grey is now developing proposals for the central Cabinet Office team to enable it to work more closely with departments on the strategic planning of campaigns.
Grey wrote: 'Focusing our comms efforts around campaigns that more clearly link to government policy and comms priorities, which involve all appropriate comms disciplines, and that require collaboration between multiple partners, both within government and beyond, will require significantly more cross-government planning than we have ever achieved beyond the press office grid.'
The Government is not considering scrapping the established press office grid, but this will sit alongside the development of a marketing grid to reflect cross-government campaign work.
The letter followed the first meeting of the Communications Delivery Board, chaired by Cabinet Office minister Francis Maude.
The letter also announced that Grey is overseeing the development of comms 'hubs' that will allow specialist expertise in fields like design to be pooled across departments. However, this restructure will not impact on departmental press offices.