Hey fleet managers — when was the last time you heard, “Don’t worry, you’ll have all the resources you need. And if you don’t, just ask”?

More likely it was: “We’ve all got to do more with less. Be creative, share resources, and run lean. We’ve got this!”

Lean management was the norm for a generation, and the formula worked — until a global pandemic tested every assumption. What followed was less blip and more structural shock. And the leanest fleets turned out to be the most fragile.

Flexible systems cost more during stability but outperform during disruption. Lean systems run great in steady times but can fracture under volatility. I call it the Flexible-Lean Fleet Paradox. So how does the modern fleet master both?

After conversations on this year’s fleet circuit, several themes emerged:

Lean spec’ing leads to bottlenecks.

Standardization protects budgets — until the one vehicle you rely on becomes the bottleneck through a recall, allocation squeeze, or price spike. Upfitters echoed the same pain point: if only one body package fits the spec, a single disruption can stall the entire pipeline.

An upfitter panelist recommended building two specs: a primary standard and a secondary alternative that’s pre-approved, operationally compatible, and ready to deploy.

High utilization leaves no cushion during volatile times.

Running 95%+ utilization looks great — until it doesn’t. Fleets with no spares have no shock absorbers.

One manager shared that he stockpiles 50–65 older vehicles as insurance. “I’m building a buffer in case we can’t get some,” he said on a panel.

With the average age of commercial fleets now over 12 years — and PM compliance below 50% nationally — it’s no surprise fleets are pushing overextended assets to the breaking point.

Lean maintenance is only cheap when nothing goes wrong.

One technician or one shop works in stable times. But when backlogs build or PMs slip, downtime compounds fast.

Maintenance inflation has hovered around 8–9% annually for five years. Fleets with minimal oversight see repair times drag, costs spike, and breakdowns multiply.

Now’s the time to lock down on maintenance: integrate preventive replacements into PM schedules, enforce escalation pathways, and increase — not decrease — maintenance oversight.

Parts scarcity exposes just-in-time vulnerabilities.

Just-in-time parts management protects budgets… until backorders hit. One fleet manager watched a four-hour fix turn into 40 days of downtime when a sensor couldn’t be sourced.

Recurring shortages of NOx sensors, ADAS components, and electronics show how brittle ultra-lean strategies can be.

You don’t need a warehouse — just a strategic buffer of high-failure parts.

Lean staffing collapses under sudden shocks.

Lean staffing feels efficient on paper, but burnout, slow onboarding, and reduced visibility erode resilience. When compliance deadlines, seasonal surges, or crises hit, thin teams can’t absorb the load.

Automation helps — if it’s implemented and maintained properly. But human bandwidth remains irreplaceable for coaching, follow-up, escalation, and cross-functional coordination.

Lean (deferred) replacement cycles aren’t a strategy.

Deferring replacements hides short-term costs while building long-term liabilities: more downtime, more expensive repairs, and higher operational risk. Fleets running 12-year-old assets face inflationary repair environments and a steep rise in unscheduled failures.

Lean safety programs fail without human reinforcement.

Safety initiatives that rely solely on online training — without coaching, feedback, or accountability — consistently underperform. Blending digital tools with real human interaction remains the most effective way to reduce incidents and liability.

So What Can You Do?

Since senior leadership tends to default to cost reduction, fleet managers must proactively communicate: What can break, how it can break, what it will cost, and what support is required. Clear communication protects both the organization and the fleet manager.

Build resilience by adding redundancy where it matters:

• Multiple OEMs

• Multiple upfit paths

• Spare assets

• Buffer stock for critical parts

• Multi-vendor ecosystems

• Preventive maintenance discipline

• Cross-functional communication loops

• Safety enforcement and coaching

• Lifecycle forecasting

• Executive alignment

Stay lean, but not rigid. Stay flexible, but not wasteful. I know, easier said than done. But with volatility perhaps the new normal, finding that balance — not pure leanness — will define fleet excellence going forward.