Science Fiction Leinster, Murray: Talents, Incorporated. v1. 12 Feb 2008

[Stanart]

Murray Leinster was a pseudonym of William Fitzgerald Jenkins who also wrote under the names of William Fitzgerald and Louisa Carter Lee. He wrote mystery, romance, western, science fiction and is credited with the invention of parallel universe stories.

Talents, Incorporated was published in 1962 and is one of his science fiction novels. The blurb from the back cover of the original paperback:

TALENTS, INCORPORATED
Charlatans or Prophets?
At best, the tiny Kandarian Air Fleet would fight until its last ship was blown into infinity. At worst, it would be annihilated without a chance. To young Captain Bors, either course was unthinkable.
The ruthless Dictator of Mekin had already subjugated twenty-two helpless planets. Now he wanted Kandar's unconditional surrender, or his vastly superior forces would blast it out of existence.
It took a lot of guts, and the hope that is frequently born of despair, for a military man like Bors to throw in his lot with TALENTS, INCORPORATED, an untried, unscientific organization. Through peculiar gifts of extra-sensory perception, its personnel could, their leader insisted, out-think and out-guess even the most deadly dictator in the history of mankind. Could it? It just might.
And it just might not.... But there was absolutely nothing to lose, and a free world (and a beautiful girl) to win. Captain Bors made his decision, and the loaded die was cast!