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 1940, Dorsey hired singer Frank Sinatra from bandleader Harry James. Frank Sinatra made eighty recordings from 1940 to 1942 with the Dorsey band. Two of those eighty songs are "In the Blue of Evening" and "This Love of Mine". Frank Sinatra achieved his first great success as a vocalist in the Dorsey band and claimed he learned breath control from watching Dorsey play trombone. In turn, Dorsey said his trombone style was heavily influenced by that of Jack Teagarden. Among Dorsey's staff of arrangers was Axel Stordahl who arranged for Frank Sinatra in his Columbia and Capitol years. Another member