DH and I have been googling and discussing this a lot and I thought you guys might have some sound advice since I posted (under a different name) a while back about my own work dilemma and got some really solid replies.
In a nut shell, he was internally promoted 6 months back to head a large department. This came from the directors (the job was not advertised and they broached the subject with him when the vacancy came available). Since them the directors and other Heads of Departments have been purposefully excluding him from management meeting, have been interfering and bad mouthing him to the other staff in public and have been steamrollering any and all attempts by him to improve staff moral on the shop floor and quality/efficiency of the production.
Despite several meetings with the Directors and CEO instigated by him, things are not changing they are, just for the worse. I've had him bring home the policies in place but to be honest they're pitiful. They're all crammed in together in a 20 page "staff handbook" which references the HR department for everyrhing. There is no HR department.
In all honestly, where would you advise he goes from here? He's trying so hard to stay positive but his spark has gone and it's heart breaking to see him like this.