TKS has Mary Mapes' written response to the CBS report. In it, she states, "all that the panel did conclude was that there were many red flags that counseled against going to air quickly. I never had control of the timing of any airing of a 60 Minutes segment...."
But on page 58, Mapes emails her partner Michael Smith in MID-JUNE that "The piece (if I get it) will run in early September."
She may not have had control of the timing, but she knew about it well in advance.