Case Study – Obsidian Plumbing

Obsidian Plumbing | Service INDUSTRY

Obsidian Plumbing | Service Industry

Using Priority Matrix to Manage a Large Team

Greg Castle
Managing Director


Greg Castle currently serves as the managing director at Obsidian Plumbing, where he has worked for over 11 years. Obsidian Plumbing has been in business for the past 15 years; their team of industry recognized plumbers have taken part in significant operations within the mining environment, civil infrastructure, industrial, commercial and domestic plumbing sectors. Obsidian Plumbing its quality products, consistent efforts to understand their customer, and excellent service integration. In this case study, Greg tells us how he uses Priority Matrix across a team of 40 at Obsidian to manage more efficiently.


Before using Priority Matrix, Greg kept track of his tasks using a variety of notepads, to-do apps, and reminders. However, without one centralized place to manage his priorities, Greg faced a number of challenges, including:

  1. Notes were spread out and unorganized, making it difficult to figure out where to start
  2. He lacked the ability to quickly write something down without worrying about it falling through the cracks
  3. Delegation, and sharing tasks, with his team was a constant battle


Currently, Greg oversees a team of 40. He has created over 10 shared projects for his team. Within these projects, Greg and his team create items, set due dates, and delegate to one another at the touch of a button. When team members need clarification, or want to provide updates, they use the in-app chat to communicate. In short, Priority Matrix has allowed him to manage more efficiently by:

  1. Providing visibility across shared projects
  2. Facilitating delegation and communication
  3. Creating a workflow that’s both efficient and easy-to-follow


By itemizing their priorities, and breaking them down into coherent projects, Greg’s use of Priority Matrix has enabled him and his team to plan better and stay more organized. This means less time spent trying to figure out what to work on, and more time spent doing important work.

“My constant ‘check, check, double-check’ on my staff is now a ‘single-check’; I can see everything in Priority Matrix, and whether or not it’s been delegated to a team member.”

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Priority Matrix is the single most used application because of its power and flexibility to both organize and track large volumes of activities and tasks. It has powerful functionality in a simple package that actually reduces the effort required, and unlike other applications, doesn’t require tedious interaction that takes away from actual execution. I love the fact that all tasks put into using PM can easily be communicated and shared with colleagues and clients through a variety of flexible methods. It’s effective all the way through.

Terry Gold, Founder

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We use Priority Matrix on a daily basis. As a small and quickly growing company, our team members are wearing many hats and often pulled in several different directions. Shared projects bring transparency to everyone’s weekly priorities and have eliminated the ‘last in, first priority’ issue with emails. Personal projects help us break down day-to-day tasks, so we’re always focusing on only the most important goals for the day.

Adam Peterson, CEO

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A very useful tool for team meetings when we discuss progress on tasks – the ability for anyone in the team to update and sync with all others in real time, is great. I use it to generate quarterly performance reports to the senior exec and the evidence of tasks completed is also used in performance management discussions with individual members of the team. It’s a more elegant and efficient way to manage work flows.

Steven Newman, Planning Manager
Edith Cowan University

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