The main similarity between the two bureaucracies is that the heads of government appoints the heads of when the position arises. This usually occurs, in the case of the UK, when the present head retires. In the US it is not uncommon for a new President to replace the head of the Bureaucracy when they come into power. In the UK Civil Service, the head of the service also assumes the role of cabinet secretary. The main need for a bureaucracy in the first place, in either system, is because of the amount of information that is available on any specific topic. It is utterly ridiculous for a single minister to be able to absorb and digest all the information to then produce a clear judgement
The main similarity between the two bureaucracies is that the heads of government appoints the heads of when the position arises. This usually occurs, in the case of the UK, when the present head retires. In the US it is not uncommon for a new President to replace the head of the Bureaucracy when they come into power. In the UK Civil Service, the head of the service also assumes the role of cabinet secretary. The main need for a bureaucracy in the first place, in either system, is because of the amount of information that is available on any specific topic. It is utterly ridiculous for a single minister to be able to absorb and digest all the information to then produce a clear judgement