Often enough I encounter requests for professionals in the software industry where the required expertise is very specific. A candidate needs to know exactly that system or that method otherwise they will be excluded.
What I see in this is that this not only gives a narrow selection but black box thinking is also very easily overlooked. As I derived from my study Information Engineering there is the possibility to manage information systems without the need to know the content INSIDE a message. It just goes from A to B. I do this for myself throughout the last 11 years now for enterprise organizations and it works well.
Information Engineers and other disciplines as well are able to operate system/market independently through the black box methodology. There is a huge opportunity for those who understand this principle when u are open for this in your assignment.
I can see that in this time we 'grab and hold-on' to 'know principles' and black box might sounds scary, but you'll get a much more skilled professional with a wider view who can address multiple solutions to enhance your business.
Since 1998 Michiel has worked on Information systems & Management. He is currently active as an Entrepeneur in www.seelt.com and www.gvar.nl