The book focuses on Weill as a dealmaker, and there is plenty of grist for that.
From the businessweek.com
I just left the Cone of Understanding, and I have some grist to add to the mill.
From the economist.com
Writers should be grateful for childhood traumas which become grist to the mill.
From the dailymail.co.uk
The images are, if not comforting, certainly grist for Oates's imaginative mill.
From the theatlantic.com
Well, she became grist for one of the great tales from Niagara Frontier history.
From the buffalonews.com
It first served as a general store, then a feed store, and finally a grist mill.
From the charlotteobserver.com
But the daily use of this tool we call language is the real grist for the mills.
From the eatocracy.cnn.com
The first grist mill occupied the ground where Syracuse High School later stood.
From the en.wikipedia.org
What people think of Bill Clinton and his presidency is grist for other columns.
From the washingtonpost.com
More examples
Grain intended to be or that has been ground
(gristly) cartilaginous: difficult to chew
Grist (originally Grist Magazine; also referred to as Grist.org) is a free American non-profit online magazine that publishes environmental news and opinion articles. Launched in April 1999, Grist is headquartered in Seattle, Washington.
A grism is a combination of a prism and grating arranged so that light at a chosen central wavelength passes straight through. ...
Grain that is to be ground in a mill; a group of bees
(gristly) Of, pertaining to, or containing gristle
The crushed malts and adjuncts that are mixed with hot water to form the mash.
Dry mixture of barley malts and adjuncts used in mashing.