Dr Michelle McQuaid, co-founder of the Wellbeing Lab, recently told HR Leader that having a 'Wellbeing Champion' in your organisation, who can advocate and assist with mental-health first aid, can complement your Wellbeing strategy. Someone who "simply cares strongly about themselves and others" can help inform your policies and procedures and "be there" if anyone needs help.
See the HR Leader article HERE with a link to Dr McQuaid's podcast.