How Israeli intelligence failures led to a ‘devil’s advocate’ role
The Tenth Man is a devil’s advocate. If there are 10 people in a room and nine agree, the role of the tenth is to disagree and point out flaws in whatever decision the group has reached.
Plan More Effectively with the “Tenth Man Rule”
When it comes to planning, you want to have every aspect covered as best you can. The “tenth man rule” always has someone play the part of contrarian no matter how solid your plan looks to make it even more effective.
The Advocatus Diaboli (Latin for Devil’s Advocate) is the popular name for a former official position within the Catholic Church, the Promoter of the Faith: one who “argued against the canonization (sainthood) of a candidate in order to uncover any character flaws or misrepresentation of the evidence favoring canonization”.[1]
In the United States, historically this is the posistion usually played by the Press versus the US Government
As you can plainly see, they were co-opted years ago (if not decades) for different purposes
Keep this in mind when having this function
Those in power do NOT like being challenged
This position will be a threat to the Climbers in your organization. You will be able to observe the attempted Co-opting of it if you use it.
Now
Where does this fit into you business?
That is your job to decide
Usually it would be best for a basic part to have them in a brainstorming
(Your level as a leader will affect this.. If you are internally weak in your head it will be magnified)
I would say put them also on the Review team
And yes it is there job to be contrary and find errors
Things you dismiss it is their job to think are true and find the contrary evidence and formulate plans
Some of you think this is BS
Well
The Black Swan: The Impact of the Highly Improbable
The Black Swan: The Impact of the Highly Improbable is a 2007 book by author and former options trader Nassim Nicholas Taleb. The book focuses on the extreme impact of rare and unpredictable outlier events — and the human tendency to find simplistic explanations for these events, retrospectively. Taleb calls this the Black Swan theory.
The book covers subjects relating to knowledge, aesthetics, as well as ways of life, and uses elements of fiction and anecdotes from the author’s life to elaborate his theories. The book spent 36 weeks on the New York Times best-seller list.[1]
The book is part of Taleb’s five volume series, titled the Incerto[2] including Fooled by Randomness (2001), The Black Swan (2007–2010), The Bed of Procrustes (2010–2016), Antifragile (2012), and Skin in the Game (2018).
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Examples where a tenth man/ Advocatus Diaboli would have been a life saver
Enron – exclusive talent above all would have been trashed
Bernie Madoff- tenth man would have said NO
Hillary Clinton Campaign- Bill would not have been ignored, leaving the abandoned states to be lost
A scandal can be broadly defined as an accusation or accusations that receive wide exposure. Generally there is a negative effect on the credibility of the person or organisation involved. Society is scandalised when it is made aware of blatant breaches of moral norms or legal requirements. In contemporary times, exposure is often made by mass media. Such breaches have typically erupted from greed, lust or the abuse of power. Scandals may be regarded as political, sexual, moral, literary or artistic but often spread from one realm into another. The basis of a scandal may be factual or false, or a combination of both.[1]
In closing, do you see the promise land here?
So if you are the business person take a moment..
Now look at the failures of the scandals and other examples
I leave you with a question you will (might.. lol) NOT like
(you have to be able to catch you emotions before they catch you)
Should anyone be kicked from all social media
or do they perform a function?
With the above information now in your possession
Now.. See the problems you face
EDIT:
My Wife ‘suggested’ I add a better worded conclusion
Simply put
Do you have an Advocatus Diaboli in your business
I covered the idea of the Tenth man and the Devils advocate
I added in What a black swan was
The scandals and losses justify the point of needing one
It comes down to you and how you do things
some follow up
Da Lazy Scholar 
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