Both options can be effective depending on your needs.
Hiring an employee may make sense if social media requires daily involvement, ongoing content creation, and close coordination with internal teams. An in-house employee often has direct access to company information and can respond quickly to new opportunities.
An agency may be a better fit when businesses need access to multiple areas of expertise without hiring several specialists. Agencies often bring experience in strategy, design, content, advertising, analytics, and platform management.
The decision should be based on goals, budget, workload, and the level of support required.
The best choice is the one that allows social media to be managed consistently and effectively.
