June 30, 2026

I Tried to Replace My Agency With AI for a Week (Here's What Happened)

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I Tried to Replace My Agency With AI for a Week (Here's What Happened)

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Artificial intelligence is changing how agencies operate.

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Every week, a new tool promises to automate prospecting, write better emails, build websites, or manage clients with almost no effort.

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So I started wondering:

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How much of a marketing agency could AI actually replace?

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Rather than reading endless opinions online, I mapped out every stage of a typical agency workflow and asked a simple question:

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Could AI realistically handle this task today?

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The answer surprised me.

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Task 1: Finding New Leads

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Every agency needs prospects.

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Without leads, there are no conversations, meetings, or clients.

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I tested different approaches, but I kept coming back to Apollo for one reason: speed.

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Instead of spending hours searching LinkedIn, I could build highly targeted prospect lists in minutes using filters like:

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  • Industry
  • Company size
  • Revenue
  • Job title
  • Location

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Try it here: Apollo.io

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Free plan available.

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Can AI replace this?

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Partially.

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AI can help identify ideal customer profiles, but you still need reliable data sources. A dedicated prospecting platform is far more efficient than asking an AI chatbot to build lists manually.

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Task 2: Writing Cold Emails

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AI is excellent at generating first drafts.

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It can suggest subject lines, improve grammar, and create different versions of the same email.

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But there's a catch.

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The best-performing cold emails usually reference something specific about the prospect.

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That context still requires human research.

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Verdict

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AI accelerates writing.

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It doesn't replace personalization.

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Task 3: Email Verification

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This isn't something AI can do on its own.

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You need a specialist tool that checks whether email addresses are valid.

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That's where Bouncer comes in.

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Try it here: Bouncer

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Verdict

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AI can't replace this.

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Task 4: Deliverability

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One of the biggest misconceptions about cold email is that better copy leads to better results.

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In reality, your emails first need to reach the inbox.

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Warmy helps improve sender reputation and deliverability before campaigns are scaled.

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Try it here: Warmy

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Verdict

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AI can explain deliverability.

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It can't build sender reputation for you.

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Task 5: Sending Campaigns

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Campaign management is where automation really shines.

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Instantly makes it easy to manage multiple inboxes, schedule follow-ups, and monitor performance.

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Try it here: Instantly

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Free trial available.

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Verdict

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AI helps write emails.

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Outreach software actually delivers them.

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Task 6: Building a Website

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This is one area where AI has made huge progress.

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You can generate layouts, headlines, and copy in minutes.

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However, a professional website still needs human input for branding, structure, and conversion optimisation.

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For simple landing pages, Carrd remains one of my favourite options.

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Try it here: Carrd

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Free plan available.

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Verdict

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AI speeds up website creation.

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It doesn't replace good design decisions.

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Task 7: Client Management

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Managing leads, proposals, and customer communication still requires a reliable CRM.

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GoHighLevel combines pipelines, automations, forms, calendars, and client management in one place.

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Try it here: GoHighLevel

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Free trial available.

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Verdict

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AI is a useful assistant.

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A CRM is still essential.

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Task 8: Automation

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This is where AI and automation work best together.

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Instead of manually moving data between platforms, I automate repetitive tasks using Make.

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Examples include:

  • New lead → CRM
  • Form submission → Slack notification
  • Meeting booked → Onboarding workflow

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Try it here: Make

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Free plan available.

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Verdict

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Automation saves time every single day.

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What AI Couldn't Replace

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After reviewing every stage of an agency workflow, three things consistently required human judgment:

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Building Relationships

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Clients still buy from people they trust.

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Strategic Thinking

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AI can generate ideas, but choosing the right direction remains a human skill.

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Understanding Context

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The best marketing decisions often depend on nuances that software can't fully understand.

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What AI Did Better Than Me

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To be fair, AI excelled at several tasks:

  • Brainstorming ideas
  • Summarising research
  • Improving writing
  • Generating outlines
  • Creating first drafts

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Used correctly, it dramatically speeds up agency work.

My Final Verdict

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Can AI replace a marketing agency?

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Not today.

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Can it make an agency significantly more productive?

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Absolutely.

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The biggest advantage isn't replacing people.

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It's removing repetitive work so you can spend more time solving real business problems for clients.

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That's where agencies create value.

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And I don't think that's changing anytime soon.