Why Your Old Strategy Playbook Is Already Wrong
I spent years watching mid-market companies burn through their competitive advantage like it was going out of style. Most of them never saw it happen. The playbook they were following — build a moat, defend it, scale it — simply stopped producing returns around 2015 and everyone kept using it anyway because that's what business school taught them. That's the core problem Rita Gunther McGrath identified in her work, and it's still causing real damage in boardrooms right now. The central thesis isn't complicated. Competitive advantage is becoming transient. Not disappearing entirely, but eroding faster than most executives realize. The old model assumed advantages accumulated over time — patents, brand loyalty, network effects, proprietary processes. Today, any structural advantage you build gets copied, disrupted, or commoditized in a fraction of the timeframe it used to take. McGrath's framework shifts the question from "How do I protect my advantage?" to "How do I create and capture advantage before it evaporates?" This means your strategy can't be a five-year plan. It has to be a series of experiments, each with clear kill criteria. If you're still writing strategic documents that assume five years of stable conditions, you're already behind. The pace of change in most industries — not just tech, but healthcare, manufacturing, financial services — means that "strategic window" is measured in quarters now, sometimes months.
I ran into this head-on when I was advising a regional logistics company a few years back. They had a proprietary route-optimization platform that gave them a 12 to 15 percent cost advantage over competitors. Solid edge. Then Amazon announced logistics-as-a-service, and within eighteen months three open-source alternatives appeared on GitHub that replicated 80 percent of the functionality. Their advantage went from defensible to irrelevant in under two years. What saved them wasn't defending the old advantage — it was pivoting into a last-mile white-label service model that leveraged their existing relationships with mid-sized retailers who couldn't compete with Amazon directly. The pivot cost them about nine months of revenue during the transition, which was brutal, but staying put would have been fatal.
What Actually Works When Advantage Is Transient
The methodology McGrath proposes is deliberately unglamorous. It's called "sequential focus" or sometimes "discontinuous strategy." The basic mechanism is simple enough that executives hate it because it doesn't feel like strategy. You pick one bet. You run it until the evidence says it's working. Then you run it until the evidence says it's failing. Then you stop. You didn't fail. You exhausted the advantage and moved to the next bet before the first one collapsed under competition. Most companies do the opposite. They pile incremental resources onto a dying advantage because the numbers still look acceptable quarter over quarter. The decline is gradual enough that it doesn't trigger alarm bells. By the time the data is undeniable, it's too late to pivot without massive disruption. The logistics company I mentioned had this exact problem. Their route-optimization margins were still positive, just declining. Leadership kept hoping the trend would reverse. It didn't. The practical implementation involves three structural changes to how strategy gets made:
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First, kill criteria are non-negotiable. Before you launch any strategic initiative, you define exactly what metrics will trigger its termination. Not vague targets like "achieve market leadership." Specific thresholds like "customer acquisition cost exceeds 40 percent of projected lifetime value for two consecutive quarters." This removes emotional attachment from the decision. When the kill criteria hit, you stop. No deliberation. No committee. Just execution. Second, portfolio allocation replaces single-project planning. Instead of betting everything on one advantage, you maintain a portfolio of five to seven initiatives at various stages. Three are in active exploitation. Two are in early experimentation. One or two are in shutdown. At any given time, the active bets should collectively generate most of your revenue while the experimental ones are building the pipeline for what comes next. This requires a fundamental shift in how you measure performance. If your top-line numbers dip while you're running experiments, that's normal. The portfolio approach smooths this out over a twelve to eighteen-month horizon. Third, speed of exit matters more than speed of entry. This is the counter-intuitive part that most strategists miss. Entering a new market or launching a new product fast is celebrated. Exiting a failed or fading advantage quickly is considered a sign of weakness or indecision. In a transient-advantage environment, the opposite is true. Companies that exit slowly bleed resources for years on advantages that should have been abandoned eighteen months ago. The average cost of a slow exit in my experience — based on actual turnaround projects — is roughly 3 to 4 percent of annual revenue per year of delay. A company making fifty million in revenue losing two years on a dying advantage just set back three to four million dollars that could have been deployed elsewhere.
Where This Framework Breaks Down
I need to be honest about where this doesn't work, because people sell it as universal and it isn't. Sequential focus and transient-advantage strategy assumes a certain pace of change in your industry. If you're in a highly regulated sector where regulatory approval cycles run three to five years — pharmaceuticals with FDA pipelines, commercial aviation, nuclear energy — the framework compresses badly. Your advantages are structurally long-lived because the barriers to entry are artificial and durable. Trying to run quick experiments in those environments is wasted effort. The regulation is the moat. Work within it. Similarly, industries with enormous capital requirements and long payback periods — things like semiconductor fabrication, commercial real estate development, heavy infrastructure — don't benefit much from rapid sequential switching. The capital is committed. The advantage comes from having the capacity that others can't easily duplicate. Here, McGrath's framework applies more to adjacent digital or service layer businesses than to the core capital-intensive operations. There's also a human resource problem that the literature doesn't address enough. Sequential focus requires people who are comfortable ending things. Not firing people necessarily, but killing projects, shutting down product lines, walking away from markets you've invested in. Most mid-level managers are promoted because they're good at building and defending things, not at killing them. You'll face institutional resistance at every stage. The workaround I've seen work is to create a separate org unit — call it a strategy lab, call it an innovation portfolio team — with explicit mandate to kill projects and report directly to the C-suite. Remove the conflict of interest from the middle management layer.
What This Looks Like in Practice
A mid-size SaaS company I consulted with applied this framework to their pricing strategy. They had been using a flat per-seat model for eight years. It was profitable, predictable, and every competitor was doing the same thing. The advantage was gone but nobody wanted to admit it because the revenue was still clean. They launched three pricing experiments simultaneously: usage-based, value-tiered, and hybrid. Each had a six-month window with clear success metrics. Two failed and were killed. The hybrid model showed promise and they doubled down. Revenue dipped 8 percent during the transition but stabilized at 12 percent higher margins within fourteen months. Total timeline from first experiment to full deployment: eighteen months. A regional bank took a different approach. They identified that their mortgage servicing advantage was eroding due to fintech disruption and margin compression. Instead of trying to defend it, they exited — selling their servicing portfolio to a larger institution for a modest premium and redirecting the capital into a small-business lending platform tailored to local manufacturers. The transition took ten months. During that period, mortgage revenue dropped to zero. Small-business lending took about a year to reach meaningful volume. But once it did, the competitive landscape was thinner and the margins were structurally better because the big national banks couldn't replicate the relationship-based underwriting model. The bank's net interest margin improved by about 85 basis points within two years of the pivot. The common thread in both cases isn't the specific move. It's the discipline of defining exit before entry, maintaining a portfolio rather than a single bet, and accepting that strategic advantage is something you cycle through, not something you accumulate and defend forever.
If you're trying to apply this to your own organization, start by auditing your current strategic initiatives and honestly rating how long each advantage is likely to last. Be generous with your estimates — if you think an advantage lasts five years, cut it in half. Then ask which of your current projects have no kill criteria. Those are your highest-risk items. The ones you'd keep running forever even if the data said they were failing.
