He might be 'in charge' at the moment, but he doesn't make these decisions. The Civil Service is a huge machine that runs along the same lines regardless of who is 'in charge'.
Ministers have a staff of Civil Servants working in departments applicable to their particular area. Those Civil Servants will remain in office, working under the same conditions, regardless of the Minister of the day. If the flavour of government changed tomorrow, Civil Servants wouldn't be affected. Ministers don't run the Civil Service.
The DWP has also faced something like 20% - 30% staffing cuts, and even those people working there who have survived the massive culls have often had to reapply for their own jobs. Twice. And have had their pay frozen for most of the last seven or eight years.
Tony, Ministers are not appointed to oversee Civil Servants. The Minister for the Foreign Office deals with foreign affairs; the Minister for the Home Office deals with home affairs. They, personally, are not employers.
Well you can spin it as if Civil Servants are taking us all for a massive joyride but it's just spin and a stupidly misleading story. Not to mention the bizarre link with IDS, who is an odious little man as far as I'm concerned but has nothing to do with this.