These players are playing in the NFL, and also benefitted from playing in Nevada coach Chris Ault's offensive system.
And that system involved the Pistol formation.
Ault, who had developed the offense in 2005, was an offensive guru who had spent most of his career at the University of Nevada, first as a player from 1965-68, then became one of the youngest coaches in college football, when in 1976, he came the head coach of the Wolf Pack at the age of 29.
Colin Kaepernick thrived in the Pistol offense.