This is the story of the management inserting such a superior successfully in a team, by using a bogeyman to take away the mutinous team's wraith.
This is a war story - humans vs far superior alien invadors of solar system. Project teams are combat ship crews. New, mistrusted, officers are of "Psi Corps". The entire story is set on Mars.
Fact sheet.First published: Astounding, June 1955.
Download full text from Project Gutenberg, Manybooks, Feedbooks.
Among the stories from Astounding/Analog issues edited by John W Campbell, Jr.
Related: Stories of E G von Wald.