Costolo out: What agencies want to see next at Twitter

by Shareen Pathak
When Twitter announced Thursday afternoon that Dick Costolo would step down as CEO next month, Wall Street rejoiced. In after-hours trading, the stock jumped 7 percent Thursday. But Madison Avenue was a little more cautious. Costolo has steered Twitter for the last five years, but slowing user growth and feature failures made him a target for Wall Street analysts and shareholders.Read the full article