A PPC expert's costly lesson: restructuring for 'best practice' tanked a client's revenue. Here's what actually matters when you touch a working account.
40% of revenue lost when Ana Kostic restructured a client's Google Ads account to follow best practices
Early in her career, Ana Kostic inherited a Google Ads account that looked like a disaster: messy structure, disorganized keywords, campaigns that didn't follow the playbook. Confident she could fix it, she did what every PPC best practice guide tells you to do, she rebuilt the entire account from the ground up. Cleaner campaigns. Better keyword organization. Perfect structure.
The result destroyed the client's revenue by 40 percent.
That failure taught Kostic something that still shapes how she manages paid media today: successful PPC isn't about building the perfect campaign structure. It's about protecting the business behind it.
When you restructure a live Google Ads account, even to meet textbook standards, you're disrupting systems that have already learned to work. Keywords have performance history. Audiences have behavioral data. Placements have conversion patterns. A perfect reorganization can erase all of that institutional knowledge in a single day.
Kostic's story reveals a hard truth: the account that looks messy on paper might be the account that's printing money. The one with perfect structure might not be generating revenue at all.
This shifts how you should think about account management. Instead of chasing best practices first, you should be asking:
A messy account that generates revenue is infinitely better than a perfect account that doesn't. And a restructure that chases perfection at the expense of performance will tank your bottom line faster than almost any other decision you can make.
The lesson here isn't that you should never reorganize your Google Ads. It's that you need to restructure around what's working, not despite it. Before you touch a live campaign:
Kostic's 40% loss became the education that shaped her entire career. The goal of PPC management is not to win the prettiest campaign structure award. It's to move money into your business and keep it there while you optimize it higher.
She inherited a messy account and rebuilt it from scratch following PPC best practices: cleaner campaigns and better keyword organization. The result was a 40% revenue drop for the client, proving that best practices can backfire if they disrupt what's already generating revenue.
The source doesn't detail the exact mechanics, but the core lesson is clear: restructuring a live account, even to meet best-practice standards, can break the customer journey, disrupt audience targeting, or lose the institutional knowledge of what keywords and placements are actually converting.
Yes, but not to chase perfection. The focus should be protecting the business behind the ads first, meaning you identify what's working, ring-fence that revenue, and only then reorganize everything else around it.
The source teaches that successful PPC is about protecting the business, not building the perfect campaign structure. Before restructuring, audit what's driving revenue today and ensure your new structure preserves that performance.