The people who recruit that group and get execution going are founders.

FORBES: Who Is A Founder?

More commonly one or two people might have an idea but then recruit a group to help execute the idea (because ideas are worthless without execution).

FORBES: Who Is A Founder?

Johnson had quickly established his eminence in the forties on 52nd Street, his sober, deliberately gloved tone partnering a rapid-fire execution that allowed him to hold his own with the trumpets and saxophones of the bebop small group.

NPR: 'Blue Note Records, The Biography'