This, needless to say, is what those people who talk about the virtues of "diversity" are trying to say. And the virtues of a diverse team of specialists is, in turn, the theme of most caper films (e.g.: Sneakers).
Especially in emergencies, it can be really great to have three or four people attack a problem from different angles. What you need is someone reading the docs while the system programmer is running strace() and the tuning guru is reallocating processes and memory and the customer liaison is on the phone trying to figure out if they really need to be running this particular enormous task on every page load.
The alternative, if you're by yourself, is to try to multiplex the roles, but it can be extremely difficult to pull yourself out of systems engineering mode while you are in there.
Especially in emergencies, it can be really great to have three or four people attack a problem from different angles. What you need is someone reading the docs while the system programmer is running strace() and the tuning guru is reallocating processes and memory and the customer liaison is on the phone trying to figure out if they really need to be running this particular enormous task on every page load.
The alternative, if you're by yourself, is to try to multiplex the roles, but it can be extremely difficult to pull yourself out of systems engineering mode while you are in there.