When Geraldine “Gerri” Tunnell took the chief marketing officer job at Dell Technologies in March 2024, the move looked less like a dramatic entrance than a camera pulling back. She had already been inside the frame for nearly two decades. She had worked across Dell’s businesses and product lines. She had spent six years leading global field and partner marketing. She knew the company from the places where a corporate promise meets a customer question, a partner’s incentive and a salesperson’s deadline.
That is useful preparation for marketing a company whose catalog stretches from a student’s laptop to the infrastructure under an enterprise AI system. The work is not simply to make many products famous. It is to give a large, technical organization a story that remains coherent as the audience, context and purchase change.
Then the route to purchase changed too. AI moved from the product story into the buyer’s process. Research, comparison and shortlisting could happen with an artificial assistant before a vendor knew a conversation had begun. Tunnell’s first years as CMO have unfolded inside that double challenge: explain a sprawling technology portfolio, and do it while machines are rearranging how people discover and judge the explanation.
A career built from systems
Tunnell studied economics at the University of Virginia, then earned an MBA from MIT Sloan. Before Dell, she worked as a management consultant at CapGemini Ernst & Young and at a Silicon Valley startup focused on supply-chain management. There is a common thread in those stops: each asks you to see the organization as a set of connected choices.
Supply chains expose the cost of a handoff. Consulting makes the handoffs visible. Field marketing reveals what happens when the neat diagram reaches an actual market. Partner marketing adds another layer: the company’s story must travel through businesses that have their own customers, priorities and language. None of this is glamorous in the conventional advertising sense. All of it is training in how value moves.
By 2018, Tunnell was senior vice president of Global Field and Partner Marketing. The role placed her near the connective tissue of Dell’s go-to-market system - close to regions, sellers and the organizations that help Dell reach customers. When the board appointed her CMO effective March 30, 2024, she inherited brand, creative, online and media, demand intelligence, product and field marketing, and corporate communications. The aperture widened. The underlying job of connection did not.
When the funnel stops behaving like a funnel
The old marketing funnel was always an approximation, but it gave teams a serviceable map: awareness, consideration, evaluation, purchase. AI makes the route feel less like a funnel and more like a transit system. A buyer can ask an assistant for a shortlist, jump directly into a technical comparison, return to a peer discussion, visit an event and ask the assistant to audit the claims afterward. Discovery and evaluation fold into each other.
At Dell Technologies World 2026, Tunnell spoke about this shift in concrete terms. AI is becoming part of how enterprise customers research, assess and shortlist providers. That gives marketers a new kind of intermediary. A brand must be legible to people and to the systems collecting, summarizing and comparing its information.
Discoverability, speed and trust become one operating problem. If a company is hard for an AI system to understand, it may disappear before the buyer sees it. If its claims are inconsistent, the summary can wobble. If automation makes the experience efficient but thin, a rival can win at the point where a person wants reassurance.
Tunnell’s answer is not a retreat to human-only marketing. Her public framing gives automation and human connection different jobs. AI can shorten the distance between a question and an informed option. A live encounter can supply judgment, chemistry and accountability. The value of a large customer event is no longer that it owns the entire journey. It is that it creates a kind of confidence the rest of the journey cannot automate.
Translation as the actual product
The scale of Tunnell’s remit becomes clearer when you list what must coexist inside it. Dell sells PCs and workstations, gaming systems, servers, storage, networking, services and AI infrastructure. A consumer choosing a laptop and an enterprise designing a data center do not share a purchase cycle. Yet they meet the same name.
This is where a CMO becomes a translator between levels of abstraction. The technical layer must remain specific enough to be credible. The corporate layer must be simple enough to travel. The creative layer needs an image or moment that a person will remember. The field layer needs language that can survive a real conversation.
Tunnell’s 2025 Alienware essay offers a small, revealing example. The “Parallel Realities” campaign, developed with VML, inserted brief gaming-world glitches into recognizable commercials from Ford, Aflac and Wendy’s. The idea did not begin with a feature grid. It began with the gamer’s feeling that a game is a world one enters. Three familiar brands supplied reality. Alienware supplied the interruption.
The campaign’s structure is worth noticing. Rather than ask each partner to tell the whole Alienware story, it gave them one shared mechanic: the glitch. That is partner marketing translated into creative form. The brands keep their own identities while a single idea passes through all of them.
The stage is part of the operating system
Tunnell also does a visible kind of translation onstage. At Dell Technologies World, her conversations have moved among musicians considering AI, filmmakers protecting the human fingerprint in creative work, and athletes talking about preparation and reinvention. In 2026, she interviewed Peyton and Eli Manning. Her later recap pulled three business lessons from their stories: prepare for the audible, build trust through excellence and stay open to coaching and new formats.
There is a temptation to treat these celebrity conversations as decorative pauses between product announcements. In Tunnell’s hands, they perform another task. They move abstract technology questions into domains where the audience already understands the stakes. A football audible makes adaptability tactile. A filmmaker’s choices make the human role in an AI workflow easier to see. The guest brings a different world; the moderator builds the bridge back.
The same pattern appears in Dell’s extended relationship with McLaren Racing. The partnership gives a physical narrative to infrastructure that can otherwise feel remote. A race weekend produces 1.5 terabytes of data. Servers support simulations. Storage carries modeling workloads. PCs put analysis near engineers at the track. The technical components become a sequence a viewer can follow: data, model, decision, fraction of a second.
Context that compounds
Tunnell’s career offers a counterpoint to the idea that reinvention always requires departure. Staying in one company for two decades can produce tunnel vision. It can also produce a detailed map of the tunnels. The difference is whether the person keeps moving across functions, products and points of view.
Her path moved from the logic of economics and supply chains to the friction of field execution, then outward to the global brand. The accumulation matters now because AI is not changing one marketing channel. It is touching research, content, measurement, customer experience and the products Dell is selling. A CMO trying to understand the shift needs both altitude and plumbing.
It also helps to know the organization’s memory. Tunnell joined before Dell went private, before the EMC combination created Dell Technologies, and before generative AI became the organizing theme of the enterprise technology market. Her public record does not turn those eras into a personal victory lap. The more interesting evidence is the scope she was asked to carry next. Field and partner work grew into responsibility for the whole marketing system. Continuity did not spare her from change; it made change the recurring condition of the job. For a company that sells transformation, that may be the most practical credential: experience translating a new technical reality for customers without discarding the relationships built under the last one.
Away from that system, Dell’s biography gives one modest detail: Tunnell likes spending time outdoors with her husband and twin boys. It is a small glimpse, and perhaps a useful contrast to a working life full of infrastructure, platforms and mediated journeys. The outdoors is stubbornly direct. You are where your feet are.
The next chapter of Tunnell’s work will be measured in how well Dell stays clear as the technology story grows more complicated. Her public thesis is already taking shape. Marketing’s art and science are being recombined. Buyers may arrive through machines. Trust still has a human owner. The field is no longer merely the last stop where a campaign lands. It is where the map gets corrected.