Hiring the right people is a hard problem. The standard approaches, hiring software developers on the basis of code scribbled on white-boards or a series of narrow technical questions, are bad. Instead, I favor three different approaches, depending on the level of the position:

We should hire new grads based on internship performance.

We should hire senior developers based of their records of design, implementation, and leadership.

We should hire mid-tier developers based on code review, typically based on open-source code.

More here: http://short-sharp.blogspot.ca/2013/04/stop-white-board-codi...