one jump ahead
Anticipating and prepared for what will happen, as in We have to keep one jump ahead of the opposition, or A clever embezzler, Charles was just one jump ahead of the police. [First half of 1900s] Also see get the jump on.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.