show the way
Guide, as in This division has shown the way to bigger profits. This expression transfers the physical sense of guiding one in a particular direction. [Early 1500s] Also see lead the way.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.