That is an excellent question.
I think that leadership needs to be political. That, however, is my own opinion. Senior public servants must also provide leadership. Without firm political will, it will be difficult for them to effectively implement initiatives that are spread over several years and that require resources, particularly those pertaining to management.
When the time comes to set the government's priorities, I am not convinced that managerial issues will be at the top of this list, particularly when they are compared to certain public services and other needs that the general public may feel are more pressing.
Firm and strong leadership is definitely needed to follow through effectively on projects that may extend over several years.