Joerg, I can relate to the accuracy of your post.
When I worked at Raytheon, whenever a tough software challenge confronted us, our top sofware consultant was a guy approaching 80 years old! He was paid the "big bucks" because he could invariably resolve the problem. That was back around 1980 before the Internet even existed (except for ARPA).
Now I am approaching 70, been retired for almost 10 years and my telephone rings nearly off-the-hook with calls from my previous employers.
Raytheon, in particular, shot themselves in the foot by laying-off off many of their higher paid employees after the age of 50 to save money. What the financial guys in the company overlooked was the fact that most of the employees laid off were the only people qualified by their experience to write technical proposals to the government, in turn costing the firm millions of dollars in lost business. They also lost site of the fact that these guys that were laid off were the only employees with sufficient experience and knowledge to make their systems function properly.
As a consequence of this extremely poor management decision, Raytheon's once robust Equipment Divison no longer exists, and hence they extensively rely on former employees hired as consultants to satisfy their continuing corporate responsibilities to the federal government and defence department.
These reponsibilities include --
The SPS-49 radar system The ROTHR over-the-horizon radar system The Tomahawk missile system The HAWK missile system The Patriot missile system ... and numerous other programs.
Since the newly hired college graduates are clearly no up to the challenge, what in the heck are company's like Lockheed-Martin and Raytheon going to do when old farts like myself die?
I'm no mental giant, but back when I was in college we had a CO-OP program that required us to work in industry for half of the year. When we returned to classes, our experiences in the field were discussed and we were advised of what we had done wrong, plus what we had done correctly. This prepared us for entry into the real world. Unfortunately such college programs are rare today and largely limited to the very top technological oriented institutions.
'Nuff said....
Harry C.