As Paley grew more remote, he installed a series of buffer executives who sequentially assumed more and more power at CBS: first Ed Klauber, then Paul Kesten, and finally Frank Stanton. Second only to Paley as the author of CBS's style and ambitions in its first half-century, Stanton was "a magnificent mandarin who functioned as company superintendent, spokesman, and image-maker".[69] He had come to the network in 1933 after sending copies of his Ph.D. thesis "A Critique Of Present Methods and a New Plan for Studying Radio Listening Behavior" to CBS top brass, and they responded with a job offer.[70] He scored an early hit with his study "Memory for Advertising Copy Presented Visually vs. Orally", which CBS salesmen used to great effect, bringing in new sponsors.[70] In 1946, Paley appointed Stanton as President of CBS and promoted himself to Chairman.