Brand is memory built over time. AI drives everything to the mean. Human judgment is how you beat it.

Armstrong started at a very small UK charity, 11 people, where the marketing title meant doing almost everything, from organising the Commonwealth Day observance in Westminster Abbey that the Queen attended to fixing the printer and the franking machine. It was the very early days of the internet, and she made CD-ROMs and websites using agencies to do it. Every agency she worked with tried to hire her, and after the fourth job offer she decided she could not stay in charities forever, wonderful places that they are, and joined Agency.com to help build the internet with wonderfully curious people who figured it out together.

Armstrong talks about being CEO demanded, not because she wants a brand tattoo on everyone, but because at their best agencies are business partners using creativity to solve tough business challenges and make a measurable difference a chief executive would notice. She frames the agency as a translator of the world into the brands: no matter how outward-focused a marketing team is, there is a centrifugal force pulling it inward, and the agency's job is to carry the world back into the brand and the brand back out into the world.

She sees two vectors hitting brands: a cultural and competitive context that creates similar situations across categories, hitting some earlier or later depending on maturity, and a technology context. Talking to marketers, C-suite and entry level people all day lets her aggregate the themes and trends and help other clients leapfrog problems at a different point in their disruption journey.

Much of the work is internal communication on the client side. Armstrong starts with a common language and common goals, then coaches clients on stakeholder management: who they need buy-in from, what those people want, how they communicate, what they believe about marketing. You cannot assume a CEO supports marketing, or that the board knows where the money goes and why measurement matters. The agency's job, she says, is to move the whole business forward, which means helping the marketing team manage its own stakeholders.

A permanent optimist with healthy paranoia, Armstrong thinks the industry is getting closer to proving the case for creativity. She came up through 10 years in digital, a world of KPIs, benchmarks and superseding them, and argues that unified audience ID, more data sets and end-to-end platforms are moving something once seen as intangible towards being the measurable key driver of the business. Not there yet, but closer.

Armstrong thinks AI has passed the peak of hubris into daily use, with people now more aware of its financial and creative cost. All creativity, she says, is taking two things that have not been brought together and combining them, and AI is built on everything that has gone before, so it creates a regression to the mean. It can shortcut work, analyse data and make you think differently, but it takes incredible humans to build brands that stand out from the mean.

Because AI drives us to the mean, human thought has never been more important. Her biggest worry is firms over-relying on AI, declaring it will replace all the junior people, and then finding in five years that no one has built the judgment and experience to lead the next wave. Training people to think, rather than lean on AI as a crutch, is the priority. Used well, AI shortens rote tasks and frees smart people to spend more time thinking.

Taking the president role at FCB New York in 2019, Armstrong found a blank slate: a number to hit and freedom to hire, part ways and build. Everything came back to the people, and by her account she built one of the best teams of her career. The mantra, borrowed from a former global CEO, was to build the agency they always wanted to work at with the people and clients they always wanted to work with. Come at culture human first, she says, and it becomes easier.

The team ran what felt like an independent agency inside a holding company, with the backup, data and specialists of the network but full autonomy as long as they hit their numbers, including saying no to a lot of pitches. In leaders she looks for a shared belief in building a world beating creative agency, plus very different, complementary skill sets. You definitely do not need three Emmas, she says, and she learns something every time she talks to someone at the agency.

Armstrong keeps returning to a line from her Agency.com days: humans are humans are humans. All technology does is let people do what they have done for thousands of years a little easier, faster or more accessibly. You cannot replace people with technology, she argues, so the work starts and ends with humans, insights and what they want. AI has even changed her own learning style, letting her answer pointed questions about a business far faster than basic search ever could.

Her answer to media fragmentation and a spaghetti-like consumer journey is a strong, consistent brand with distinctive assets and a good platform that shows up correctly at every touch point. Do that and the journey itself matters less: people get a consistent, incremental view, understand what you sell and why they want it, form an emotional connection, and the business thrives. She names short term, campaign-by-campaign agency relationships as one of the biggest problems in marketing.

Armstrong tells the story of a colleague who chose a Caribbean island for his 10th wedding anniversary because 25 years earlier a travel poster of its cerulean blue sea had lodged in his memory. Brand memory structures, she says, are built with consistency and over time. Hard to measure, but we all know the brands we feel connected to whether or not it is logical, and building those is essential to a business.

Armstrong is optimistic and realistic: brand building is more important than ever and those skills are less and less prevalent, so agencies remain an essential tool in a marketer's toolkit. As sameism becomes more common, the job is to build a brand, sell product and drive the business forward with an outsized impact, which is how brands survive.

Her advice to anyone entering the industry is to be really curious and not limit yourself with preconceived notions about where to work. She has done five or six careers in 30 years and learnt something useful each time. At their best, agencies are Swiss Army knives, so get as much experience as you can, learn what you love, make contacts, and have fun.