Originally sourced from devops.com (2018). Rewritten and expanded for a DevOps engineering audience.
The Old Model: Committing to a Single Vendor Suite
For many years, enterprise IT operations ran on a straightforward model: choose one of a small number of dominant platform vendors, sign the enterprise license agreement, and trust that vendor’s integrated suite to cover the full spectrum of IT Ops needs. That spectrum typically included monitoring, ticketing, configuration management and asset tracking, and automation and orchestration.
Each major vendor had its relative strengths and weaknesses, but the core value proposition was consistency and breadth. Unless an organization had highly specific requirements, a single vendor could plausibly serve as a one-stop shop. Development inside these suites moved at a measured pace—incremental improvements delivered on long, predictable release cycles. When a promising startup threatened the incumbents in a specific area, the common outcome was acquisition, bringing the innovation back inside the walled garden.
The arrangement suited everyone involved. IT professionals built long careers as certified experts in a particular vendor’s stack. CIOs could hire from a well-defined talent pool and felt reassured by the vendor relationship. The ecosystem was self-reinforcing and slow to change.
Why the Old Model No Longer Fits Modern IT
Over the past decade, the comfortable equilibrium described above has fractured. The pressure came from the business side: as organizations expected IT departments to deliver faster, more frequent changes, the sprawling monolithic suites could not keep pace. An 18-month release cycle is incompatible with an agile delivery model where strategy itself can shift multiple times in that window.
The term best of breed shifted in meaning. In the old model, it was a mildly dismissive label for a narrowly focused point solution—fine for one job, but lacking the breadth of a full suite. In the new model, it became clear that the individual components within those big suites were, with a few notable exceptions, mediocre. The headline value proposition—pre-integrated out of the box—also eroded. Many IT professionals remained loyal to specific tools within a suite but grew increasingly willing to pick and choose rather than accept the entire platform vision.
Simultaneously, the emergence of REST APIs as a broadly adopted integration standard dramatically lowered the barrier to connecting disparate tools. In many cases, it became easier to wire together modern point solutions via API than to integrate the aging component parts of a legacy suite burdened by years of technical debt.
How to Deliver the Flexibility and Agility the Business Expects
Even conservative, risk-averse IT organizations now broadly accept that the path forward is a custom-fit, multi-solution toolchain rather than alignment to a single vendor vision. That toolchain will typically include a mix of commercial products, open-source tools, and home-grown automation scripts and integrations.
The harder question is: what do you do if your organization is already deep inside an IT monoculture and needs to evolve out of it? The following principles provide a practical framework.
1. Audit the Past Without Assigning Blame
Start by re-evaluating past buying decisions and strategic alignments honestly and without blame. The architects of those decisions were operating in a different environment, where integrating tools from multiple vendors was genuinely difficult and the risk of going off-piste was real. Those choices may have been entirely reasonable at the time. The goal of the audit is understanding, not accountability theater.
2. Do Not Default to a Clean Sweep
Replacing everything at once is rarely the right answer. Most large vendor suites contain at least a few genuinely strong products—sometimes called tentpole products—that kept the overall suite competitive well past the point where the rest of the portfolio had grown stale. These tools may still be fit for purpose and not worth the disruption of replacing them. The task is to identify which components are genuinely lagging and replace those selectively, rather than treating the transition as an all-or-nothing proposition.
3. Account for All Costs, Not Just License Fees
Total cost of ownership calculations must go beyond the license price. A product covered under an existing enterprise license agreement may appear free, but the full cost picture includes:
- Ancillary licenses for supporting software or databases the tool depends on
- Hardware requirements, particularly for older on-premises tools not designed for cloud infrastructure
- Administrative overhead: the ongoing staff time required to maintain, patch, and operate the tool
- Talent availability and cost: legacy tools often have shallow talent pools. Specialists who know the technology may be scarce, expensive, and less willing to change employers. Newer technologies frequently offer broader, deeper talent markets at a wider range of salary and experience levels
Talent availability is frequently underweighted in these decisions. If you need to hire several engineers fluent in a legacy platform versus a modern stack, the difference in time-to-hire, cost, and long-term risk can be substantial.
4. Treat the Transition as a Managed Project
Moving from a monolithic suite to a diverse toolchain is not a background task. It is a capital-P Project that requires deliberate planning, stakeholder alignment, phased delivery, and active risk management. Toolchain migrations touch monitoring, alerting, change management, runbooks, and team workflows simultaneously. Underestimating the coordination required is a common failure mode.
That said, the payoff justifies the investment. A well-designed multi-tool IT Ops toolchain is more adaptable, easier to evolve component by component, and better positioned to keep pace with the rate of change the business demands.
Building Your IT Ops Toolchain for Your Actual Needs
The end goal of this transition is not merely a different set of tools—it is a fundamentally different relationship between IT Ops and the rest of the business. When IT Ops can select, integrate, and evolve its toolchain independently of a single vendor’s roadmap, it gains the agility to respond to new business requirements proactively rather than reactively.
This shift repositions IT from a cost center—a necessary overhead comparable to Facilities—into a strategic function capable of enabling new business initiatives. That is a meaningful change in how IT is perceived and funded, and it begins with toolchain decisions made at the engineering level.
The assumptions that made single-vendor suites the safe default no longer hold. The integration barriers that once made multi-vendor toolchains impractical have largely disappeared. Decisions built on those old assumptions deserve fresh scrutiny. Building a custom-fit toolchain is more work upfront, but it is the architecture that modern IT Ops demands.