[serge2k]

> I am increasingly bothered by the "not invented here" syndrome

I'm bothered by the increasing prevalence of "never invent here".

FOSS is great, but if it's not meeting your needs then writing your own is perfectly valid.

[Retra]

And often one of your needs is "have people on hand who know exactly how it works", and the easiest way to achieve that is to have those people build it from scratch. That's the only way to actually ensure it makes your needs priority #1.