The video in question can be found here.
I was watching the video you linked to and I was aghast at what Seddon was taking credit for.
At about 19:15 he says:
"I developed the model of Check Do Act."
Actually, Brian Joiner published that Check Do Act model in his 1994 book "Fourth Generation Management."
Joiner shares this Check-Act-Plan-Do model on page 49 of his book, talking about why it's more appropriate to start the cycle with "Check."
At best, Seddon is derivative of Joiner (I saw that Joiner's book is curiously missing from his of recommended books, this can't be an accident) or Seddon is ripping him off and not giving credit where it's due.
Read more: http://www.evolvingexcellence.com/blog/2010/02/thanks-craig.html?cid=6a00d834521be169e2013488050ec2970c#comment-6a00d834521be169e2013488050ec2970c#ixzz126hCypsp
at Evolving Excellence