S1E02 The problems at full capacity utilisation



"if everyone is busy we must be productive"

"if someone is idle there must be spare capacity to be utilised"

Traffic congestion theory


Resource allocation



Simple allocation


Complex allocation


  • Size is correct
  • No variation



Normal Distribution

Image result for normal distribution

Gamma distribution

Image result for gamma distribution



Now what?

Organisational response 


Familiar buzz words gets thrown around:

  • Prioritisation
  • Expediting
  • Reallocation
  • Task switching
  • Management focus

"adding human resources to a late software project makes it later" - Brook's Law

What to do

  1. Communicate risk early
  2. Build slack into the plan
  3. Realise that changing adds overhead

Reading recommendation


The Phoenix Project by George Spafford, Gene Kim, Kevin Behr

The Phoenix Project cover art

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