Companies don't fall apart when they lose their CEO or CFO
So what this boils down to is the notion that head of organizations, be they terrorist or corporate (insert joke here), we overspend on resources directed at the top.
In targeting terrorists, we spend big bucks on weapons systems and focus intelligence attention at the top.
In the case of corporations, we pay huge salaries -- believing the heads to be irreplaceable.
In both cases, there are plenty of qualified, motivated individuals ready to do a hydra-like head regeneration of the top levels.
"A complex system that works is invariably found to have evolved from a simple system that worked." -- John Gall, _Systemantics_