Sad to report, similar developments are undermining Britain's Foreign and Commonwealth Office [FCO], as described in the Economist:
The department has lost a succession of turf wars that have left it a hollow shell. Downing Street has annexed the most high-profile pieces of foreign policy—Mr Blair exercised almost total control over his ill-starred Iraq policy and the wider “war on terrorism”. The Treasury has ground its next-door neighbour by a twin process of starving it of funds and stealing some of its plum jobs. Britain’s previous ambassador to the EU, Sir Ivan Rogers, was a Treasury man who had never worked for the Foreign Office. The Department for International Development (DfID), which was created only in 1997, has grown into a monster that overshadows its aristocratic stepbrother. DfID is rolling in money because a legally mandated formula allocates it 0.7% of national income; meanwhile the Foreign Office must downsize or sell off its embassies.Government institutions can atrophy from neglect. Talented people will go elsewhere to make a difference. Great powers need robust diplomatic instruments. I hope Britain and America reverse course.