As a professional I am a fire fighter for Companies that work in Construction Projects where Package Values typically exceeds £50M, the projects that usually are the structures that create a City Scape for a Major City.
When I am introduced there are usually forensic analysts of the Contract and Programme with a regular reporting to the Groups most senior personnel.
My role is to undo all the blockers and give description of what is the causes of the project arriving in the current state,
This reminds me of when I project managed a major IT upgrade for an English multi-national some years ago. The UK company planned for 2 years of analysis to identify the companies needs. They had already spent 1 1/2 years in planning.
I put in a complete new system in 6 months, completed everything required for full blown IT system that supported MRP manufacturing, ISO approved to medical device standards, multi country distribution - even included IT systems to support the transport of live skin in a temperature controlled environment from the US to the other side of the world and delivered to the operating table within 36 hours anywhere.
Went back to the UK a year later after we went live across the southern hemisphere, they were still working on their plan.
That's why the UK is in such an economic mess.

