Andreessen has been quietly and successfully recruiting and interviewing candidates for positions across the incoming administration, according to three people familiar with the matter who, like several others interviewed for this article, spoke on the condition of anonymity to detail confidential personnel deliberations. The venture capitalist’s reach is not limited to decisions related to tech and economics personnel, one person who speaks to Trump regularly said. Andreessen has also advised the incoming administration on candidates for posts at the Department of Defense and intelligence agencies, that person said.