i'm not sure what you mean.
do you know who appointed the"iraq study group"?
was it the administration? or congress?
or did the group just set itself up?
the key to understanding the role of this group is finding out who set it up.
my guess is that the admin is already negotiating with both iran and syria, and that this report is designed to provide the cover for when the news leaks out.
according to wikipedia, the isg was set up by congress.
here is an interesting comment from the wiki article:
"Because Baker is in close contact with the White House throughout the study group's activities, it is likely that any recommendations will have been "tacitly approved in advance" by the president"