Homden has joined the charity as interim commercial director after four years at the British Museum, where she was marketing and public affairs director.
She is covering the role while permanent post-holder Deborah Higgins is on maternity leave, and leads all communications, marketing and fundraising activity.
Her role includes working with head of comms Clare Winterton and policy and programming director Leslie Morphy, on a review of public affairs to get underway this week.
The charity is understood to be on the verge of hiring Good Relations to carry out the two-month review, which will shape fundraising, public affairs and comms activity for the near future.
Winterton said the review has three aims: 'To enhance external comms, improve the ability to fundraise for the public sector and strengthen the policy structure.'
It will also look at better ways to attract corporate donors. Winterton said the review is unlikely to lead to the creation of full-time public affairs roles, adding 'the outcome is more likely to be the creation of a more strategic approach'.
Public affairs efforts regarding the UK Parliament are currently assisted by consultant Alan Read.
For its review Good Relations will carry out an internal audit, a review of current government activity relating to the charity and will work on 'policy development and message'.
Another key area to look at will be the charity's relationship with the devolved regions. Steps have been taken by the charity to create a regional communications structure since devolution.
The charity funds and manages projects to help young people. Its projects include a link-up with the Football Association, and its ambassadors include England defender Rio Ferdinand.