Jack Dorsey fashion design. As the service began to grow in popularity, Dorsey chose the improvement of uptime as top priority, even over creating revenue – which, as of 2008, Twitter was not designed to earn. Dorsey described the commercial use of Twitter and its API as two things that could lead to paid features. He describes his three guiding principles, which he says are shared by the company, as simplicity, constraint and craftsmanship. On October 16, 2008, Williams took over the role of CEO, while Dorsey became chairman of the board. On March 28, 2011, Dorsey returned to Twitter as Executive
Tommy Dorsey Clambake Seven as a Dixieland group that played during performances, too. The Dorsey band had a national radio presence in 1936, first from Dallas and then from Los Angeles. Tommy Dorsey and his Orchestra took over comedian Jack Pearl's radio show in 1937. By 1939, Dorsey was aware of criticism that his band lacked a jazz feeling. He hired arranger Sy Oliver away from the Jimmie Lunceford band. Sy Oliver's arrangements include "On The Sunny Side of the Street" and "T.D.'s Boogie Woogie"; Oliver also composed two of the new band's signature instrumentals, "Well, Git It" and "Opus One". In