(… that are never tested in interviews)
Many buy-side shops need a lead developer not to manage people but get things done.
In many of my past teams, Site-specific local system knowledge is 95% of the required knowledge. Generic knowledge pales in comparison including portable GTD and zbs.
[t] Unravel and explain (high AND low-level) data flow and business logic. Requests come from business and other teams.
[t] how-to-achieve (H2A) a requirement — knowledge about existing system is far more relevant than generic techniques. Highly valued by employers. Budget is often allocated to requirements.
I feel the Lab49 consultants and the productive GS developers, and Sundip Jangi are good at all these areas.
[t=tracing large amounts of code is required]