The Morning After: Jack Dorsey is stepping down as Twitter CEO, again

Big tech news normally slows as the year winds down, but Jack Dorsey isn't letting that happen. The Twitter CEO has resigned from the company, with CTO Parag Agrawal replacing him as chief executive. "I've decided to leave Twitter because I believe the company is ready to move on from its founders," Dorsey said in a statement. Over the last six years, Dorsey has run two major tech companies: Twitter and Square. His first stint as CEO of Twitter, which he co-founded, ended in 2008 when he was pus...