Being a former civil servant, I'm usually annoyed when people mention Yes Minister as real life in Government tends to be stupidly complex and has lots of very good people doing as good a job as can be done in difficult circumstances (certainly just as good or bad as in the private sector in my experience - you just don't see them being eviserated in the press very often).
However, this has all the hallmarks of the minister in question being throughly Sir Humpreyed.
"Welcome to your new office Minister. Just read this brief on how wonderful we are. Oh by the way, you have a select committee meeting in 3 days where you'll have no choice but to regurgiate our briefing as you don't know any better yet, and then you'll be stuck defending us forever more lest you be accused of a U-Turn".