Carl may refer to:

James Douglas Muir "Jay" Leno /ˈlɛnoʊ/ (born April 28, 1950) is an American stand-up comedian and television host.

From 1992 to 2009, Leno was the host of NBC's The Tonight Show with Jay Leno. Beginning in September 2009, Leno started a primetime talk show, titled The Jay Leno Show, which aired weeknights at 10:00 p.m. (Eastern Time, UTC-5), also on NBC. After The Jay Leno Show was canceled in January 2010 amid a host controversy, Leno returned to host The Tonight Show with Jay Leno on March 1, 2010.

James "Jay" Leno was born in New Rochelle, New York, in 1950. His mother, Catherine (née Muir; 1911–1993), a homemaker, was born in Greenock, Scotland, and came to the United States at age 11. Leno's father, Angelo (1910–1994), who worked as an insurance salesman, was born in New York to immigrants from Flumeri, Italy. Leno grew up in Andover, Massachusetts, and although his high school guidance counselor recommended that he drop out of school, he later obtained a Bachelor's degree in speech therapy from Emerson College, where he started a comedy club in 1973. Leno's siblings include his late older brother, Patrick, who was a Vietnam veteran and a lawyer.

Ken Schwaber is a software developer, product manager and industry consultant. Ken worked with Jeff Sutherland to formulate the initial versions of the Scrum development process and to present Scrum as a formal process at OOPSLA'95. They have extended and enhanced Scrum at many software companies and IT organizations. Schwaber and Sutherland are initial signers of the Agile Manifesto. They are co-authors of the definitive Scrum Guide, which is made available for free by Scrum.org. Today Schwaber runs Scrum.org, which provides Scrum resources, training, assessments, and certifications for Scrum Masters, Scrum Developers, Scrum Product Owners, and organizations using Scrum.

He is one of the leaders of the agile software development movement. He is a founder of the Agile Alliance, and he is responsible for founding the Scrum Alliance and creating the Certified Scrum Master programs and its derivatives. Ken left the Scrum Alliance [1] in the fall of 2009 after a serious bicycle accident. He then founded Scrum.org with Alex Armstrong. At Scrum.org, he led the development of new courseware, assessments, and partnerships to improve the quality and effectiveness of Scrum. He has recently published and updated Scrum with Jeff Sutherland, and wrote "Software in Thirty Days" also with Jeff.