New baseline just in, from a Freedom of Information response.
As at 31 October 2015, 7,355 staff were employed within the BBC News division (including Global News & World Service and English Regions), up from 7314 in March 2015. That compares with 6,302 in December 2010 - the division now clearly reeling from the impact of cuts under the Delivering Quality First programme, which started in 2011.
The enquirer also asked about words in job titles. Apparently, contrary to a previous post, there's no-one with Strategy or Strategic in their official handle. There are 10 people with Change in their titles.