This year I have been working with DWP on building their communities of practice, here are some thoughts from one of their members.

https://digitaldwp.blog.gov.uk/2016/05/12/6-months-into-my-role-as-a-business-analyst-in-digital-dwp/

And from their head of role on building a cross-government community of practice

https://digitaldwp.blog.gov.uk/2016/09/15/building-a-cross-government-business-analysis-community/