Flexible

I know it's not common policy to "promote" articles or websites here. But I just wrote an article (in Dutch) on a flexible working environment. And I mean on a national scale. Many arguments are always given that we cannot fire people easy enough, and that that's bad for innovation.
Well, there are several views on this, and if I read that 33% of all employees changed job in the period 2000-2002 (not the best economic times here in the Netherlands), it seems we are pretty flexible. Or are we? And do these people that changes jobs, mostly young and highly educated professionals, not hamper innovation as well, by changing so much and so fast?