In recent news at Twitter, the CEO and Chairman of the Board will be switching places. Jack Dorsey, the current Chairman of the Board, and Evan Williams, the current CEO of Twitter will be switching positions. Read more here.

They had this to say in a recent posting at Twitter:

"We're entering a new phase now and there are new kinds of challenges ahead. Healthy companies acknowledge the need for change even during the best of times. As Twitter grows both internally and externally, we took a good look at our path forward and saw the need for a focused approach from a single leader."