[mmsimanga]

> While it is absolutely essential that the person managing the domain area needs to be capable of understanding the technical details surrounding it

Having been a developer who worked his way into management. I cannot see how a manager has time to get to understand the technical details. Between meetings, HR duties and one on ones there isn't much time to get to the technical detail. You need loads of uninterrupted time to get to grips with technical details. As a manager, you don't have that time.

[Stryder]

Emphasis: "capable". Mapping one concept into another and between abstraction levels is something displayed by all the strongest leaders I've met.