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The Big Four Fall Foul Of AI

Written by Gareth Martin | Jul 30, 2026, 12:59:41 PM

When AI Gets the Facts Wrong, So Do the Consultants

The consulting industry is experiencing its biggest transformation in decades.

Every major consultancy is investing billions in Artificial Intelligence. Deloitte, PwC, EY and KPMG are embedding AI into their delivery models, internal operations and client engagements. The promise is compelling: faster research, greater productivity, richer insights and more efficient delivery.

Over the past year, several ‘Big Four’ firms have faced tough questions after published reports were found to contain fabricated references, incorrect citations and AI-generated "hallucinations."

Reports that were intended to demonstrate expertise instead raised questions about governance, quality assurance and professional credibility. An investigation by the Financial Times alongside independent analysis from watchdog GPTZero, found fabricated footnotes, unverifiable research, invented case studies and incorrect citations appearing across multiple publications from leading consulting firms. The lesson here reaches far beyond marketing. It strikes at the heart of consulting in the age of artificial intelligence.

The Same Risk Exists Inside Every Enterprise

Most IT transformation programmes begin with discovery. Consultants spend weeks collecting information from:

    • Discovery platforms
    • CMDBs
    • Asset repositories
    • Cloud platforms
    • Network management systems
    • Security tools
    • Spreadsheets
    • Workshops with subject matter experts

The assumption is that somewhere within those sources lies the truth. Unfortunately, enterprise operational data rarely tells a single consistent story. Discovery tools disagree, CMDBs drift, assets move, applications change ownership, relationships disappear, duplicate records accumulate. The result is fragmented operational data that slowly loses trust over time.

Visibility Isn't Understanding

One of the biggest misconceptions in enterprise consulting is believing that visibility equals understanding. Discovery tools are incredibly valuable. They describe what exists. They rarely show:

    • Which data can be trusted
    • Which records are duplicates
    • Which applications support critical business services
    • Which relationships are missing
    • Which changes introduce operational risk

This is where many consulting engagements become slow. Teams spend weeks validating information before meaningful analysis can begin, and value be delivered for the client.

The Challenge Of Speed To Value

For large consulting organisations, speed to value is a key differentiator. With trusted operational data consultants can begin strategic workshops, identify cost optimisation opportunities, and ultimately deliver measurable value to clients.

The challenge is that when a consultancy lands in a large organisation, with a set amount of time to deliver their consultation, the opportunity to procure and implement an enterprise grade discovery tool (if the client doesn’t already have one) can take more than a year. It’s a non-starter.

Even if the organisation has a discovery tool, the consultants then continue to experience the same problem that the organisation is currently enduring. They’re working with inaccurate data from disparate sources. If the client has a discovery tool, what validates its accuracy?

Every week spent validating data delays delivering insight that a client can actually trust. Consultants spend so much valuable time establishing which data to gather, finding it and whether the data can be trusted, that's its expensive and inefficient for both consultancy and client.

In a market where clients expect faster transformation and lower delivery costs, compressing weeks of discovery into hours fundamentally changes engagement economics.

uControl Was Designed To Solve Exactly This Problem.

A no code, point and click platform that ingests operational data from multiple sources, reconciles and normalises records and continuously validates operational information to create trusted service context. uControl is designed to be live in minutes, not weeks, enabling organisations to move from installation to actionable insights rapidly.

For consulting firms, this means they spend less time proving what exists and more time delivering measurable business outcomes without the large scale implementation requirements or ongoing licenses cost. uControl is a platform that doesn't require businesses to rip out and replace their current technology, it integrates and supplements the existing tooling to validate and ensure its performance. 

Delivering Speed To Value At Enterprise Scale.

TekWurx has spent decades helping some of the world's largest organisations establish trusted operational data.

Recent examples include:

    • An International Telecoms Enterprise, was trapped between an ageing asset management system they no longer trusted, and a replacement programme that felt too expensive and complex to justify. They turned to uControl. 

    • A Federal Reserve Bank, where TekWurx migrated enterprise discovery within a 40-day window while maintaining 99.9% CMDB accuracy and eliminating more than £1 million in operational costs and inefficiencies.

    • An International Bank, where uControl modelled 633 business applications and delivered 100% DORA compliance within a single working week.

These projects demonstrate an important principle. Better outcomes begin with better operational data.

The Future Belongs To Firms That Trust Their Data

The next generation of consulting won't be defined by who has access to the best AI. Everyone will. The firms that win will be those that begin every engagement with the ability to deliver trusted operational data at speed. uControl gives consultants that trusted understanding in minutes, not weeks. That will change the economics of consultation. 

Whether you're helping clients modernise IT, prepare for AI, improve operational resilience or reduce cost, trusted operational data is the foundation of every successful engagement. Book a demonstration of uControl and discover how consultants can establish a trusted operational baseline in minutes, accelerate time-to-value and deliver better outcomes with confidence.