> triumvirate The two historical examples that immediately come to mind (and explain the Latin term) both didn't end well. I agree with the rest of the points

> triumvirate The two historical examples that immediately come to mind (and explain the Latin term) both didn't end well. I agree with the rest of the points you make. I think in Europe, the CnC is always a military post and needs to have done officer training and risen through the ranks, whereas the head of government (whether nominal or actual) is strictly a civilian role. Whether European models would scale up to something the size of the USA is another question.