Patrick Mullen

About Me

Patrick is the Founder of and has been a scheduling consultant for over 10 years. He has consulted for some of the largest projects in the country including Google's Data Center program, the Crenshaw Corridor project in Los Angeles, the Midfield Satellite Concourse Expansion at LAX Airport, Ram's Stadium, and the LAX Terminal 2 Improvements project. His expertise includes creating and updating complex construction schedules for General Contractors, reviewing schedule health and performance for Owners, analyzing scheduling impacts, and resource (labor and cost) management. Pat has extensive experience in creating delay claims for the Contractor and reviewing delay claims for the Owner.

Experienced both as a Contractor’s scheduling adviser and an Owner’s representative, Patrick is well-versed in the preparation and analysis of complex CPM schedules with a variety of project types. Patrick is an expert user in a suite of scheduling software including, Primavera P6, P3, Microsoft Project, Suretrak, Claim Digger, Schedule Analyzer Enterprise, and various others.

Patrick has also performed P6 training courses for groups and for individuals.


Position: Scheduling Manager
Software Used: Primavera P6
Tulsa, OK January 2013 - October 2015
Patrick led a team of Senior Schedulers for the General Contractor in the planning, development, and execution of complex CPM schedules for a $1.5 billion Data Center program. Each schedule was fully cost and resource loaded which allowed the team to track cashflow, produce payment for the subcontractors based on their earned value, and compare the labor hours spent to-date versus the subcontractor’s bid amounts.
Position: Senior Scheduling Advisor
Software Used: Primavera P6
Los Angeles, CA July 2017 to February 2020
Senior scheduling advisor to the General Contractor for updating and managing the schedule for a new multi-level concourse and associated aircraft infrastructure. Role included updating the master schedule in Primavera P6, ensuring that the cost loaded schedule matches the payment application, and creating automated pictorial schedules.
Position: Senior Scheduling Advisor
Software Used: Primavera P6
Los Angeles, CA March 2016 - Current
Senior scheduling advisor to the General Contractor for an 8.5-mile extension with eight new metro stations. In this role, Pat updated the master schedule, aligned the cost loaded schedule with the payment application, managed delay claims for the General Contractor, reported progress to the Owner, and provided resource forecasting.
Show All


Importing A P6 Layout (.plf)

So you received a .plf (layout) file from someone and want to be able to import it to the schedule to be able to use it within the schedule file. That's what this article will cover. So what is a layout? When a layout is saved, it allows you to "freeze" the view in P6 so that you can re-use that sam

Comparing Schedules in Microsoft Project

Microsoft Project has a built-in comparison tool that is useful and easy to operate once you know it exists. As someone who uses P6 extensively, I would often convert MS Projects to P6 just so I could use comparison tools in P6. But once I found out about the comparison tool in Project, it removed t

Case Study - Delay Claim for a Contractor

Let's look at a real life case study of a delay claim where the Contractor was delayed by the Owner and was awarded an excusable, non-compensable time extension. The project was an airport renovation where the security check-in point was being remodeled. There were several different "sub-projects" b

Show All