As a Specialist-Generalist you often have to take a punt on people – how do you decide who you should trust?
Twice US Secretary of War; Henry Stimson (1867 – 1950) gives good advice: start with everybody.
Stimson had his hands full during WWII. As Wikipedia notes:
Stimson took charge of raising and training 13 million soldiers and airmen, supervised the spending of a third of the nation’s GDP on the Army and the Air Forces, helped formulate military strategy, and oversaw the Manhattan Project, which built the first atomic bombs.
He was also a lawyer, mountaineer and Governor of the Philippines and coined the Stimson Doctrine: the policy of nonrecognition of states created as a result of aggression.
Stimson’s advice on trust?
“The only way to make a man trustworthy is to trust him.”