Why the middle of the B2B and SaaS market may be in for the biggest disruption of all
Here’s a truth that’s keeping B2B executives up at night, even if they haven’t fully articulated it yet: AI isn’t just creating new competitive dynamics—it’s fundamentally rewiring who your real competitors are.
You have so many more now. And in some cases, the ones that were less competitive before, or in a state of decline, or just too small to matter — are back or more of a threat than ever.
We’ve all been focused on the obvious AI story: the race to build better models, the rush to integrate AI features, the scramble to avoid being “disrupted by AI.” But there’s a quieter, more insidious dynamic at play that’s reshaping competitive landscapes across B2B software.
AI is often making your most unlikely competitors suddenly viable again.
I’m talking about two categories that conventional wisdom would tell you to ignore: (1) the legacy dinosaurs everyone wrote off years ago, and (2) the scrappy 5-person startups that couldn’t possibly compete with your feature-rich platform.
Both are now punching way above their weight class. Here’s why—and what it means for your strategy.
The Lazarus Effect: When Legacy Platforms Get AI Life Support
Let’s start with the old guard. These are the platforms that have been around since the Clinton administration, built on architectures that predate the smartphone. Companies you probably haven’t considered real competition in years.
Case Study: Zendesk’s Quiet AI Renaissance
Take Zendesk—an 18-year-old platform that many wrote off as feature-complete and innovation-stagnant. While everyone was watching the shiny new customer service platforms emerge, Zendesk quietly built some genuinely impressive AI capabilities on top of their existing infrastructure.
The result? Their AI isn’t just good—it’s making their dated platform feel surprisingly modern. Customers who might have churned to newer alternatives are now finding that Zendesk’s AI-powered workflows actually solve problems better than the “modern” alternatives without AI.
This is the Lazarus Effect in action. A great AI layer can resurrect platforms that should have been dead and buried, making them not just competitive, but sometimes superior to newer solutions that lack sophisticated AI.
The Genesys Miracle: From 1990 to $2B ARR at 35% Growth
Want to see this dynamic in its most extreme form? Look at Genesys.
Founded in 1990—before the web browser, before Amazon, before anyone had heard of “software as a service”—Genesys spent years struggling to find its footing in the cloud era. It was the definition of a legacy dinosaur, built for an on-premise world that was rapidly disappearing.
Fast forward to today: Genesys is re-accelerating at $2B+ ARR, growing at 35% annually. They just closed a $1.5B investment round from Salesforce and ServiceNow—two companies that could have easily built competitive solutions in-house but chose to invest in the 34-year-old incumbent instead.
How? AI transformed them from a legacy contact center platform into an AI-native customer experience powerhouse. Their decades of data, integrations, and workflow knowledge became AI training advantages rather than technical debt.
The David vs. Goliath AI Multiplier
On the flip side, AI is also supercharging the smallest players in ways we haven’t seen since the early SaaS days.
When AI Bridges the Feature Gap
Traditionally, a 5-person startup couldn’t compete with established platforms because they simply couldn’t build all the features, integrations, and workflows that enterprise customers demanded. The feature gap was insurmountable.
AI changes this equation. A clever AI agent can now handle complex workflows that would have required months of custom development. It can bridge integration gaps, automate processes, and deliver sophisticated functionality with a fraction of the traditional engineering investment.
The New Minimum Viable Product
This means the barriers to entry in many B2B categories are dropping precipitously. A startup that would have needed 50 engineers and two years to build a competitive product can now launch something genuinely useful with 5 engineers and 6 months—if they nail the AI component.
We’re seeing this across categories:
- Sales tools where AI assistants replace complex automation workflows
- Customer service platforms where AI agents handle tier-1 support better than rule-based systems
- Marketing platforms where AI creative generation replaces expensive creative teams
- Analytics tools where AI insights replace custom dashboard development
The Squeezed Middle: Why Mid-Market Leaders Are Most Vulnerable
Here’s where this gets really interesting—and scary if you’re a mid-market SaaS leader.
The Pincer Movement
You’re now facing a pincer movement:
- From above: Legacy players with decades of data and integrations, now AI-powered
- From below: Nimble startups with AI-native architectures and lower cost structures
The Feature Parity Trap
The traditional moats—more features, better integrations, enterprise-grade security—are becoming less defensible when AI can replicate much of that functionality. Customers are increasingly willing to trade feature breadth for AI-powered intelligence.
The Switching Cost Equation Changes
When AI can automate migration, data transformation, and workflow recreation, switching costs drop dramatically. That enterprise customer who’s been locked into your platform for years? They’re suddenly more willing to experiment with alternatives when AI handles the heavy lifting of the transition.
What This Means for Your Strategy
1. Assume Everyone Is a Potential Competitor
That legacy platform you dismissed as “technically inferior”? That startup you ignored as “too early stage”? Both deserve a fresh competitive assessment through an AI lens.
2. Speed Trumps Perfection in AI
The companies winning this transition aren’t necessarily building the most sophisticated AI—they’re shipping AI features fastest and learning from real customer interactions. Perfectionist development cycles are competitive suicide in this environment.
3. Your Data Moat Is Your Only True Moat
Features can be replicated with AI. Workflows can be automated. But proprietary data that trains better AI models? That’s still defensible. Double down on data collection, cleaning, and AI training loops.
4. Partnership Over Pure Competition
Notice that Salesforce and ServiceNow invested in Genesys rather than competing directly? Sometimes the smartest strategy is identifying which AI-powered “competitors” could actually be strategic partners or acquisition targets.
The Bottom Line
AI isn’t just changing how we build products—it’s changing who we compete against. The comfortable assumption that legacy players are too slow and startups are too small no longer holds.
Every SaaS CEO should be asking: Who are our competitors in an AI-powered world? Because the answer probably includes companies that weren’t on your radar six months ago.
The great AI equalizer is here. The question isn’t whether it will reshape your competitive landscape—it’s whether you’ll adapt fast enough to thrive in the new reality.

