"External hires" refers to the new employees that a company brings in from outside the organization rather than promoting existing employees from within. Full definition
Because people place more trust in their peers than talking heads, it's no surprise that referrals are consistently reported as the No. 1 source of external hires in employer surveys. (blog.simplyhired.com)
That way, employees will have a clear view of their own career path and won't feel threatened by external hires. (entrepreneur.com)
Do you know where the majority of external hires come from? (job-hunt.org)