There is an office at Apple's old Infinite Loop campus that has been locked and dark since 2011. It was Steve Jobs's, and when Tim Cook took over he never moved into it. Fifteen years later, nobody has. John Ternus is expected to take Cook's office at Apple Park. Cook kept his distance from the man he replaced and spent fifteen years being compared to him anyway. Ternus starts at Cook's desk, with Cook down the hall. He is staying on as executive chairman, has told colleagues he will keep running Washington and Beijing himself, and said as much in the note he sent staff on his last day in the job: he is not leaving Apple, he is stepping away from a role he loved. Every part of that is sensible. It also means the person who has spent fifteen years setting Apple's instincts is still there while the new man tries to change them.
Consider what he inherited in August 2011. Jobs had spent a decade making wagers that could have finished the company and kept winning them: the iMac, the iPod, a phone with no keyboard, a tablet nobody had asked for. That was the house style. Cook did something else. He looked at the iPhone, understood what it was worth, and spent fifteen years building a world around it so that leaving became unthinkable. The Watch in 2014, AirPods in 2016, then Apple Pay, Apple Music, iCloud and the App Store, each one charging a little every month. The services business he assembled out of that now earns more than all of Apple did on the day he started. Revenue roughly quadrupled to $416 billion, market value rose fifteenfold past $4.7 trillion, and there are now more than 2.5 billion active Apple devices in the world against a few hundred million when he arrived. None of it came from a product. It came from operations, which is what Cook had been doing since 1998. He knew what every component cost and where it came from, and he squeezed until the margins moved. Dropping Intel for Apple's own silicon took gross margins from about 40 per cent in 2011 to nearly 50 per cent today, which is the most consequential decision of his tenure and one you have never seen or been sold. He did swing occasionally, and it kept not landing. The Vision Pro was his, championed as the device that would make computing spatial and eventually succeed the phone, and it has ended up an expensive object for enthusiasts, with jobs now being cut across the programme. The iPhone Air was a new shape for the product that pays for everything and did not find its buyers. The car ran for a decade and several billion dollars before it was shut in 2024. What the operations work bought was a company that cannot be knocked over. Maps launched badly in 2012, he apologised in writing, the iPhone did not blink. Tariffs took $638 billion off Apple's value in three days last April and it came back within weeks. The EU took $14.4 billion in back taxes and about $4 billion more in fines, the US justice department sued over monopoly claims, App Store commissions were forced down in several markets and rival app stores prised open in Europe. Margins went up through all of it. That durability has a cost, and AI is where it showed up. Cook's method had never failed before: turn up late, turn up finished. Apple did not invent the MP3 player, the smartphone, the tablet, the smartwatch or wireless earbuds. It let someone else prove a category, then walked in with better hardware and better margins. AI did not wait. Apple Intelligence stumbled at launch in 2024, the Siri overhaul slipped by nearly two years, the acquisition Apple went shopping for never happened, and Cook removed the AI chief and reassigned the executive running Siri. Last year Apple gave up on its own models and started paying Google to put Gemini underneath Siri. Cook's memo describes the pattern without meaning to. The thing he says he is proudest of is what an annual report could never capture, that culture beats everything else. He is right, and it is the most revealing line in the letter. He built a culture, not a product, and cultures are magnificent at continuing to be themselves.
He is Apple's first chief executive in three decades to have spent his career on hardware, and that is the argument for him. He joined in 2001, after a mechanical engineering degree from Penn, where he swam varsity, and four years designing headsets at a virtual reality startup. His first work at Apple was on screens for Macs. By 2005 he was leading hardware engineering for the iMac G5, where his team wanted to hold the glass in place with magnets, an idea treated as odd at the time and one he pushed through anyway. Promoted to manager, he was offered an office and turned it down twice, staying in open seating with his team. He spent long stretches in Asia learning how hard it is to make a supplier deliver what a designer drew. His first note to staff was mostly thanks, which is what a first note to staff always is. What is interesting is where it ends. Not on the launch he calls phenomenal, but on what sits behind it, the products already in the works and the ones nobody has imagined yet. Cook's letters were about the team and the values. Ternus wrote his about the pipeline. Then there is the other Ternus. Around 2018, Apple weighed putting a small laser in the iPhone for better photos and mapping, at about $40 a device. Ternus, running hardware, proposed putting it only in the Pro models, on the reasoning that the loyalists would pay for new technology and nobody else would notice. Commercially it was the right call. It is also the reflex that kept Apple out of the AI race, and it now belongs to the chief executive. Six former employees have described him as better known for maintaining products than creating them. One former engineering manager put it more bluntly than anyone inside would like: if you want to make an iPhone every year, Ternus is your guy. He has been willing to say no to Cook's projects, though. He never accepted the Vision Pro argument, on the grounds that it was too heavy and too expensive to go mainstream, and Apple has been cutting that programme since he was elevated. He backs the smart glasses instead, and is said to be open to leaving head-worn devices altogether if they do not take.
Start with what he already has. The foldable iPhone next week, the first genuinely new shape the product has taken. A 20th anniversary iPhone in 2027. Then the things still some way off: smart glasses next year, AirPods with cameras that read your surroundings, a home display on a robotic arm, a wearable pendant, a touchscreen MacBook. All of it approved by Ternus as hardware chief, all of it the "already in the works" half of his memo, and more new hardware than Cook shipped in fifteen years. The other half, the products nobody has imagined yet, is the part that has to come from the new job. The difficulty is everything around the products. He is thin on finance, legal, procurement and government relations, which is most of a modern chief executive's week. Cook keeps Washington and Beijing, and has been personally working through the memory shortage that has already pushed up MacBook and iPad prices, with iPhones expected next. Analysts have started asking whether Apple's growth this year is coming from volume or from price. He also inherits a supply chain that exists in its current form only because an operations man built it. India assembles roughly a quarter of Apple's global iPhones now, about 55 million units in 2025, and the entire iPhone 17 line was made here before launch. Vietnam took AirPods, iPads and Watches. A small US assembly base was set up largely to satisfy Donald Trump, with a $600 billion investment pledge attached and promises of more. None of it was visionary. All of it was necessary, and it is now Ternus's to keep running while he tries to do something else. The bench is emptying at the same time. Jeff Williams, the chief operating officer long assumed to be the natural successor, retired in December after 27 years. Luca Maestri, finance chief for a decade, has moved into a smaller role. Phil Schiller gave up the App Store and Apple's product events days before the handover, which colleagues read as a step towards retiring outright, and he is the last visible link to the Jobs era. Roughly half the leadership team could be gone within a few years. Below them, engineers have been leaving for Meta and for OpenAI's hardware division, which Apple is now suing over trade secrets. So the pipeline says risk-taker and the record says careful, and Cook is still in the building.
Ternus stands on that stage next week while Cook sits in the room, off it for the first time in fifteen years. The wider Siri rollout lands the same week, which means his first month contains both the thing he built and the thing he inherited. The foldable will tell you nothing. A folding iPhone seven years after Samsung is what turning up late and finished looks like, and it would have shipped under Cook too. Watch for something duller: whether this company, under a product man, puts real money into something that does not pay for itself inside a product cycle, and whether a board that has enjoyed fifteen years without a bad quarter will sit through one while he tries. Signing out, Cook wrote that Apple made its dent in the universe because of what it values and how it sees the world. He meant it as a description of a culture built to endure, which it is. That is the inheritance and the problem in the same sentence. Cook spent fifteen years making Apple a company that nothing could knock over. Ternus now has to find out what it can build if it lets itself be knocked.
