Sundar’s experiMENTAL
Hello experiMENTAList, it’s Sundar 👋
I’m a former Head of Marketing Science at Uber where I optimized $1Bn+ in spend across Brand, Performance, and Lifecycle. Now, I share weekly playbooks that help you prove and scale your Marketing ROI.
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Now let’s get experiMENTAL!
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How to triage business performance
Every week across the world, millions of people wake up and start their Monday mornings praying to the business gods. They hope that when they open their performance dashboard, their numbers have gone up and that they'll be able to share a 30-second blurb about this positive news in their weekly business reviews.
But as we all know, it's never that easy.
Today, I'll share the framework I use to triage business performance and save countless hours chasing rabbit holes.
The three levers of impact
If you get philosophical, business is nothing more than a facet of life, so the rules that govern your life also govern businesses. All forces can be broken down into three categories:
Things you can control
Things you can influence
Things you can’t control
Most businesses get tripped up in #2. They think they have more control over those things.
Here are a few examples:
CPMs
Cohort quality
External platforms and APIs
So to assess business performance, you need to systematically eliminate variables that affect your performance, helping you isolate where the impact is.
Where do I start?
With the things I can’t control. This might seem counter-intuitive, but it helps me make sure I'm not chasing the wrong rabbit holes.
Things you can’t control

The first thing I do is look at a year-over-year chart. You'd be surprised how often we forget how much seasonality it can impact things. Of course, we all remember large events like Black Friday, but what about minor holidays like President's Day or Indigenous Peoples Day?
Within holidays for example, there are three periods that surround the holiday:
The week before
The week of
The week after
An example from Uber:
The week before Thanksgiving was normal, then the week of Thanksgiving was obviously a huge drop, and then the week after Thanksgiving was a massive rebound. But even during the week of Thanksgiving, Thursday was obviously quiet, but the day before is one of the busiest days of the year. It's almost like a mini New Year's. Seasonality has so much nuance and even intra day intra hour seasonality needs to be considered.
Scheduled holidays are easy, but what about large events? Sports, concerts, festivals, etc.
An example from Bounce:
In Australia, which is one of our largest markets, we would have to continuously adjust because of the Taylor Swift effect. The year before, there was a set of Taylor Swift concerts that completely broke our numbers, and so the year after you needed to continuously think about why performance is lower.
How to triage:
Look at YoY growth but make sure you’re comparing the right periods
Example: A week that has a holiday may change one year to the next
Look at WoW growth (and compare that to WoW from last year)
This’ll tell you if there’s week to week seasonality
Look at MoM growth (and compare that to MoM from last year)
This’ll tell you if your week to week seasonality is an anomaly or part of the broader pattern
Start by ruling out the things you can’t control because they often have a larger influence than you think and catch many people by surprise.
Things you can influence
Influence vs. control are separated by a fine line. But, the things we can influence tend to be “higher up the funnel”. Naturally, the impact from there will waterfall down.
Example from Uber
We judged marketing performance by looking at how many first trips we drove. Here’s what our Marketing funnel looked like:
Ad
Download / Install
Sign up
Add credit card
Request
Complete first trip
The experience in steps 2 to 5 was internally controlled, but the ad is a mix of your control and external influence.
So we'd start by assessing what metrcs like CPMs and CTR were relative to forecast.

If your CPMs are 10% higher than forecasted then keeping everything else constant you will have 10% lower performance (and conversely 10% higher CAC).
But we don't control CPMs.
Even if you set CPM caps and they're within a range, the truth is there is a volatility in that random metric that cascades and waterfalls down. Same thing with CTRs or ad conversion rates. Generally, they were within a range, but week to week there were fluctuations.
How to triage:
Have an expectation for metrics like CPM / CTR
Create a metrics tree that monitors the funnel
Assess performance vs expectations WoW
Assess performance vs last year YoY
On 4., there's often a high probability that you've misforecasted. One way to offset that is to look at year-over-year growth in CPMs over the last few weeks and see if they've been consistent.
If you're consistently YoY 10% higher, then there's no reason this week would be any different. You need to make sure that's accounted for in your expectations.
This part of the triaging process is where alignment is crucial. There needs to be a consistent view of ownership and accountability for these metrics. Otherwise, every week it turns into a game of pointing fingers.
My advice here is to map out every metric and assign it an influence versus control label that you agree with your leadership team and your finance team.
There needs to be confidence we can can contain the metric, but understanding that these are random variables that are not fully controllable.
Things you can control
While this area might be the simplest, it's also the most controversial. If the product team introduces a bug and it brings down the whole site, is that really in our control? If the MarTech team breaks the product feed, is that really in our control?
It might sound existential, but in reality we do control these. Unfortunately, that also means the list of things we “control” grows quickly.
So, here’s a list of questions you need to answer to triage performance:
What did we change from last week?
This can be everything from UI changes to workflow changes to A/B tests and new product rollouts.
There needs to be a feedback system or loop for teams to understand.
What broke last week?
We all know that feeling of seeing a line chart go to zero and you can’t find any comms on wtf is happening.
Teams need to be in the loop to understand when things are broken.
How to triage:
Use a metrics tree / funnel again
Understand where in the funnel performance deviated
Understand what changes / broke
Subsegment
This last step is something most teams don’t do. Performance impacts are almost never linear. It’s either a channel or a country or some other demographic attribute that leads to the change in performance.
Here are some examples of subsegments to analyze every week:
mobile vs web
Android vs iOS
Countries / Cities
Marketing channels
To effectively triage business performance here you need to create systems. Otherwise, it’ll take you hours every week that’s just wasted on low ROI reporting. As an extension of that, if you want to read how to run a killer Weekly Business Review, check out my article here.
That’s it for this week!
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Stay experiMENTAL,
Sundar


