Building Consistency and Confidence: Why ITIL Matters

Lisa Delaney, Principal Learning Specialist – QA

Lisa Delaney has extensive experience as a service management practitioner, having worked across service desks, change management functions, and large enterprise environments.

In this article, she reflects on the practical benefits of investing in ITIL training and certification. Drawing on real-world examples, she explains how structured learning improves consistency, resilience, and service quality within organizations. Her perspective reaffirms that training is not simply about earning credentials, but about creating shared understanding, embedding disciplined behaviours, and delivering sustainable service outcomes.

For people working in service management, there is no shortage of advice, templates, and opinions available online. However, relying on ad hoc guidance rather than formal training in frameworks such as ITIL is like being handed the car keys without any driving lessons: everyone creates their own rules of the road, interprets signs, and situations differently, and lacks a shared understanding of what constitutes good driving behaviour. The result is inconsistency and risk.

Underinvestment in service management training – and its consequences – is often most visible at the service desk. These teams sit at the front line of IT services, and when they lack a solid grounding in service management principles, the results are rarely isolated and can lead to a gradual decline into inconsistency.

The lesson is clear: well-trained people are better equipped to anticipate risk, manage change responsibly, and respond effectively when things go wrong.

How a common language averts chaos

Without shared processes or guidance, service desk professionals may rely on personal judgment. As a result, prioritization becomes inconsistent, documentation is neglected, and knowledge is retained informally rather than shared. Important issues are overlooked while less critical tasks receive attention, leading to avoidable outages, prolonged downtime, and frustration throughout the organization. Over time, the service desk can become reactive and chaotic rather than predictable and dependable.

Best-practice frameworks such as ITIL exist to prevent such issues. By providing a common language, defined processes, and clear expectations, they guide behaviour and create predictable, repeatable ways of working. Just as important, they offer organizations a stable foundation on which to introduce new initiatives and improve services in a controlled manner.

What changes when teams are trained?

When I became a change manager within a major financial institution, I had limited experience in that specific environment. However, the presence of well-established ITIL-aligned processes made the transition remarkably smooth.

Change processes were clearly defined, consistently followed, and actively supported by leadership. Everyone understood their roles within the delivery chain, responsibilities were clearly outlined, and performance was regularly measured and improved. Management buy-in ensured compliance, with clear consequences when processes were not followed. As a result, changes rarely failed, and customer satisfaction improved.

This experience highlights a core benefit of training: when teams share a common understanding of service management principles, work becomes easier rather than more restrictive. Processes reduce uncertainty, minimize friction, and allow teams to focus on delivering value.

On the service desk, the benefits are often clear and measurable. Organizations that invest in ITIL-aligned practices typically see higher rates of first-contact resolution and first-time fixes. Knowledge is documented and shared instead of being kept in individual “black books”, making teams more resilient and scalable.

This shared knowledge also supports practices such as shift-left, enabling teams to resolve issues earlier without needing to increase headcount. Teams become more capable, adaptable, and cost-effective, while the overall quality of service improves.

Why informal guidance is not enough

Without formal service management training, outcomes become unpredictable. Customers receive uneven experiences, performance is difficult to measure, and sustained improvement becomes harder to achieve.

These risks were illustrated by a large-scale global outage in 2024, where a compromised software update disrupted millions of Windows endpoints across various sectors, including healthcare, banking, and aviation. While the immediate cause was technical, the deeper issues were procedural. Factors such as poor change and release management, insufficient validation, a lack of staged deployment, inadequate rollback planning, and limited recovery rehearsals all contributed to the scale of the disruption. These are precisely the areas that ITIL practices address.

Stronger change enablement would have enforced clearer risk assessments and appropriate authorizations. Structured release management could have avoided a “big bang” deployment in favour of a progressive rollout and pilot programmes. Improved testing, rollback readiness, and major incident management would have reduced both the likelihood of failure and the resulting chaos.

At its core, the incident exposed not only weaknesses in processes but also gaps in service management training, where teams lacked the shared knowledge and judgement needed to recognize risk, challenge deployment decisions, and respond coherently under pressure.

A practical foundation for learning and development

For organizations reviewing their learning and development priorities, the ITIL Foundation course - now available in the latest ITIL (Version 5) update - serves as a strong starting point. It offers a comprehensive overview of how services are planned, designed, delivered, and improved – emphasizing the importance of collaboration between IT and the wider business.

ITIL has evolved to offer more practical, real-world techniques that professionals can adopt from day one, while being AI-native and providing insight into the combined, end-to-end management of digital products and services.

ITIL is often misunderstood as being solely focused on IT. In reality, its success depends on business engagement and shared ownership. Once professionals acquire this foundational knowledge, they can further their skills through the latest ITIL (Version 5) higher-level courses.

The key is to commit to structured learning rather than relying on informal knowledge. Well-trained service management professionals deliver consistent outcomes, reduce risks, and empower organizations to operate with confidence in increasingly complex environments.

Discover how ITIL (Version 5) is evolving to support consistent, resilient service management in today’s digital organizations.