I agree, but I think it is something more important than that. They must have a proper strategic planning machine at their service; otherwise, they are just a bunch of individuals giving their personal opinions.
It may suit civil servants to sideline the military professionals—to reduce the uniformed contribution to strategic planning to the input of one individual, the Chief of the Defence Staff. It may suit them, too, to sideline the Ministry of Defence and reduce its contribution to a single strand of a so-called national security strategy, but it does not suit the national interest to have inadequate specialist military pushback against politicians with poor strategic grasp and a political bee in their bonnet. That is how disastrous own goals, like the Libya fiasco, come to be inflicted upon us, despite the warnings of the then Chief of the Defence Staff against overthrowing the Libyan regime.
A single military adviser, no matter how capable, cannot have the same impact as the combined contribution of a Joint Committee of the heads of the armed forces. So it is not enough just to set ourselves a 3% target for defence expenditure, as indeed we must; it is vital also to
recognise that our tried and tested machinery for making military strategy has been vitiated and largely dismantled. The Chiefs of Staff must once again be more than budget managers, stuck on the sidelines while politicians and officials call the shots and, as often as not, call the shots incorrectly.