at this stage

Also, at this or that stage of the game. At this (that) step, phase, or position in a process or activity, as in I'm not sure if you can help at this stage, but perhaps you can pitch in later, or I don't need an assistant at this stage of the game. The variant uses game in the sense of “a particular process or activity.” [Early 1800s]

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.