Digital Marketing Agency vs Freelancer
Choose a freelancer when the need is well defined and one specialist can own it. Choose an agency when strategy, content, design, development and channel execution need to work together. The better option is the one with clear accountability, relevant evidence and a scope your team can manage.
Define the problem first
Do not choose a team structure before deciding whether the real need is strategy, production, technology, campaigns or all four.
Ask for relevant process
Review how decisions are made, who performs the work, how feedback is handled and what the handover includes.
Avoid outcome guarantees
Credible partners can explain assumptions, activities and measurement. They should not guarantee rankings, virality or revenue without control of the full business system.