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There is a moment in the growth of almost every successful brand that determines whether it will still exist five years from now.
It happens when one acquisition channel starts working brilliantly. Maybe Meta ads are producing customers at a CPA that feels almost unfair. Maybe organic SEO is bringing in steady traffic month after month. Maybe a single influencer relationship is delivering 40 percent of new customers. Whatever it is, the channel is working, the team is leaning into it, and a quiet decision gets made without anyone naming it.
The decision is to stop seriously investing in other channels. Why would you, when this one is working so well? Every rupee you spend elsewhere is a rupee that could be earning more here. So you double down. You hire for that channel. You build expertise there. You let the other potential channels atrophy.
For a while, this looks like genius. Concentrated focus. Operational excellence. The numbers are great.
And then the channel changes. The platform updates its algorithm. The cost goes up by 40 percent overnight. The influencer's audience moves elsewhere. The keywords you ranked for get crowded with competitors. Whatever the trigger, the channel that was working so brilliantly stops working, leaving the brand with no other source of growth, no time to build one, and a runway that suddenly looks short.
This edition is about the dynamic that creates this moment, why it is so common, and what the brands that survive it do differently.

Why concentration happens
Channel concentration is not a strategic choice. It is the natural drift of any growth team optimising for short-term efficiency.
When one channel is producing customers at a lower CPA than the others, every analytical framework will tell you to put more money there. Performance marketing dashboards will show that channel's ROAS as the highest. The growth team's incentives will reward putting more spend where the returns are highest. The CMO's quarterly reporting will showcase the channel's success.
Over six to twelve months, this drift consolidates. The team that used to spend 40 percent on Meta, 30 percent on Google, 20 percent on content, and 10 percent on partnerships now spends 75 percent on Meta. Not because anyone decided to. Because every monthly review naturally reallocated more money toward what was working best, and nobody ever made the explicit case for keeping a portfolio.
The moment of acute risk comes when this concentration crosses 60 to 70 percent of new customers from a single channel. At that point, the brand's growth, its survival, is dependent on the continued performance of one platform that the brand does not control.
The platform risk
Every paid platform has done at least one of the following at some point in the last decade. Significantly increased its costs. Changed its targeting capabilities. Restrict what advertisers can say or show. Updated its algorithm in a way that materially shifted who sees what.
These changes are not malicious. Platforms are businesses, and they make decisions in their own interests. But they happen, and they happen without warning, and they affect every brand on the platform simultaneously.
The CPA increase that wiped out half the unit economics of Indian D2C brands in 2022 came from a single set of changes Meta made to its tracking after iOS privacy updates. The companies that had built diversified channel mixes survived it as a margin compression. The companies that had built their entire growth engine on Meta were existentially threatened, and many of them did not make it through.
This is the platform risk. It is non-negotiable, it is unpredictable in timing, and the only protection against it is having other channels that can absorb the shock.
What diversification actually means
Diversification does not mean spreading your spend equally across every possible channel. That is the opposite mistake. It means building a meaningful presence in a small number of channels that work for your brand, no single one accounting for more than 35 to 40 percent of new customers.
The right portfolio depends on the business. For a typical D2C brand, a healthy mix often looks like 25 to 30 percent paid social, 20 to 25 percent SEO and content, 15 to 20 percent email and lifecycle, 10 to 15 percent partnerships and PR, and 10 to 15 percent community and referral.
The exact percentages matter less than the principle. No channel should be irreplaceable. If any single one disappeared overnight, the business should still be operating, even if uncomfortably.
The build-versus-buy dynamic
The reason concentration is so attractive in the short term is that paid channels are bought, and most other channels are built.
The buying acquisition is fast. You decide today to spend more on Meta, the spend goes live tomorrow, and customers arrive within days. There is no patient infrastructure building. No content library to develop. No community to nurture for months. The dollar in produces a customer out within a tight feedback loop.
Building acquisition is slow. SEO content takes six to nine months to start ranking. Community takes years to develop into a meaningful pipeline. Email and lifecycle work require sustained content investment before they start producing returns at scale. None of these has the same instant gratification as paid.
So when the choice is between continuing to invest in things that are working today or investing in things that might work in eighteen months, most teams choose today. And they keep choosing today, every month, until the moment when today stops working, and there are no eighteen months of build behind them.
The brands that survive platform shifts are the ones that started building eighteen months earlier than they thought they needed to. Their content was already ranking when paid search started getting expensive. Their email list was already producing significant revenue when Meta CPA spiked. Their community was already strong enough to keep the brand alive while the team rebuilt the paid playbook.
How to know if you are concentrated
Pull up your customer acquisition data for the last quarter. Ask three questions.
What percentage of new customers came from your single largest acquisition channel? If the answer is over 50 percent, you have meaningful concentration risk. If it is over 65 percent, you are at acute risk.
If your largest channel had a 40 percent cost increase tomorrow, what would happen to your monthly revenue? If the answer is something like "we would be in serious trouble," you have not built diversification.
What channel did you invest in eighteen months ago that is producing meaningful results today? If the answer is "we did not really invest in anything else, we focused on what was working," you have not been building; you have been only buying. The bill on that decision will come, just not on a predictable schedule.
What to do this quarter
Diversification is uncomfortable because it requires investing in things that look inefficient relative to your best channel. You are deliberately choosing to put money into channels that produce higher CPA, slower ROI, and harder-to-measure returns, because the long-term resilience of the business is more valuable than the short-term efficiency.
The right way to start is to allocate a fixed percentage of your acquisition budget, somewhere between 15 and 25 percent, to channels that are not currently your best performers. Treat it as insurance. The CPA on these channels will look bad on the dashboard. The team will be tempted to redirect the budget back to what is working. Resist that temptation. The investment is not in this quarter's CPA. It is in the optionality you will have when this quarter's best channel stops being the best channel.
The brands that get this right are still operating five years from now. The ones that do not, even brilliant ones with great products, often are not.
See you at the next edition, Arindam


