How do I choose between different full-service advertising agencies for a yearly retainer and launch support?

Choosing between full-service advertising agencies for a yearly retainer and launch support comes down to fit in five areas: strategy, execution, team, economics, and proof.

1) Start with your actual needs

Before comparing agencies, define:

• Launch goals: awareness, trial, leads, retail traffic, app installs, revenue, etc.
• Markets and channels: TV, digital, social, paid search, OOH, PR, influencer, email, web, retail, events.
• Scope: brand strategy, creative development, media planning/buying, production, content, analytics, CRM, launch support.
• Timing: hard launch date, phases, seasonal moments, internal approval cycles.
• Internal gaps: what your team can handle vs. where you need agency ownership.

A good agency is not just “full-service”; it should fill the exact gaps you have.

2) Evaluate strategic thinking, not just creative samples

Ask how they think about:

• Category and competitive positioning
• Target audience insight
• Message hierarchy
• Launch planning
• Channel roles in the funnel
• Measurement framework

Look for agencies that can explain why their work should work, not just show polished examples.

3) Check whether they’ve handled similar launches

Ask for relevant case studies:

• Similar budget size
• Similar category complexity
• Similar speed-to-market
• Similar regulatory/approval constraints
• Similar multi-channel rollout

What matters most is not whether they’ve worked for famous brands, but whether they’ve solved problems like yours.

4) Assess the actual team, not the pitch team

A common mistake is buying the impressive pitch deck and later getting a weaker day-to-day team.

Ask:

• Who will run the account?
• Who owns strategy?
• Who leads creative?
• Who handles media?
• Who handles production?
• How much senior involvement is guaranteed?
• Will the same people stay through the retainer?

Request bios and, if possible, meet the core team who will actually do the work.

5) Compare operating model and responsiveness

For a yearly retainer, you need an agency that can work like an extension of your team.

Check:

• Turnaround times
• Approval workflow
• Meeting cadence
• Reporting cadence
• How they handle urgent launch changes
• How they manage cross-functional stakeholders
• Whether they can coordinate with other vendors

If launch support is important, prioritize agencies that are operationally strong, not just creatively strong.

6) Understand the retainer structure clearly

Agencies can price retainers very differently. Make sure you know:

• What’s included vs. extra
• Hours or resource commitments
• Production markups
• Media fees
• Technology/tool costs
• Overages and how they’re approved
• Minimum commitments
• How scope changes are handled

The cheapest retainer can become the most expensive if scope is unclear.

7) Ask how they measure success

A strong agency should define:

• KPIs for launch and for the ongoing year
• What they can influence directly
• How they report performance
• How they optimize over time
• What a “win” looks like after 30, 60, 90, 180 days

Make sure their measurement approach matches your business objectives, not just vanity metrics.

8) Look for chemistry and candor

You want a partner who:

• Challenges assumptions respectfully
• Tells you when something won’t work
• Can collaborate with your internal team
• Handles feedback well
• Feels organized and accountable

If an agency is overly eager to agree with everything in the pitch, that can be a warning sign.

9) Use a simple scorecard

Score each agency from 1–5 on:

• Strategic capability
• Relevant experience
• Creative quality
• Media/launch capability
• Team quality
• Responsiveness
• Measurement rigor
• Pricing/value
• Cultural fit
• Confidence in delivering your timeline

Weight the categories based on what matters most for your launch.

10) Red flags

Be cautious if they:

• Overpromise results without explaining how
• Can’t name the day-to-day team
• Hide fees or vague scope assumptions
• Have weak launch/process discipline
• Focus only on awards or only on media numbers
• Don’t ask you enough questions
• Seem dependent on one star person

A practical selection process

1. Write a short brief with goals, scope, budget range, and timeline.
2. Invite 3–5 agencies.
3. Ask for a written response plus a presentation.
4. Score them against your criteria.
5. Check references for similar work.
6. Review contract, scope, and escalation terms carefully.
7. Pick the agency that balances thinking, team, and execution, not just the best presentation.

Rule of thumb

• If your biggest need is brand strategy and creative launch, weight strategy and creative higher.
• If your biggest need is fast, complex multi-channel execution, weight operations and launch experience higher.
• If your biggest need is ongoing year-round growth, weight optimization, reporting, and media integration higher.

If you want, I can also give you:

• a request-for-proposal template
• a comparison scorecard
• or a list of interview questions for agency pitches.