Jack Welch, the iconic former CEO of General Electric, has died at 84. Welch was a towering figure in the world of business, leading GE for two decades and becoming one of the most celebrated and respected CEOs in history. He was known for his aggressive and innovative approach to management, as well as his charismatic style and outspoken nature. During Welch's tenure at GE, the company underwent a massive transformation, becoming one of the most successful and profitable corporations in the world. Welch was also a major advocate for the principles of lean management, which he helped popularize. After retiring from GE in 2001, Welch remained an influential voice in the business world, writing several best-selling books and serving as a senior advisor to investment firm Trian Fund Management. Welch is survived by his wife, Suzy, and their two children.