BUSINESS
January 25, 2003 | By Walter Hamilton and Josh Friedman, Times Staff Writers
For Christos Cotsakos, the revolution ended abruptly Friday. The controversial head of online trading firm E-Trade Group Inc., a key player in the late- 1990s Internet stock-trading frenzy whose ads once proclaimed, "Welcome to the next revolution," unexpectedly resigned as chairman and chief executive of the company. Cotsakos' departure came two days after Menlo Park, Calif.