Stuart Chase comes across as one of the more interesting thinkers from the period Schlesinger explores in The Crisis of the Old Order. Nice article on him in the Harvard Magazine:
Chase’s growing influence had attracted the attention of Franklin D. Roosevelt ’04, then governor of New York. The men first met in 1931, shortly before the publication of Chase’s book A New Deal. FDR made use of its economic arguments and made a "new deal" the focal point of his 1932 speech accepting the Democratic presidential nomination. Though not a Brains Truster, Chase later served in FDR’s "kitchen cabinet"; in 1937, the president told Chase’s father that his son was "teaching the American people more about economics than all the others combined." Others concurred: in 1942 a magazine writer noted, "[H]e perhaps more than any other one person has made economics interesting and understandable to everyday people like you and me."