The departures would be sudden, but not unexpected. Twitter is still having problems attracting new users, and recently installed CEO Jack Dorsey has been cleaning house in a bid to turn things around. This would just be the first time that his axe falls on management in a big way. There's no telling whether or not this will work, but it's safe to say that this won't look good to outsiders -- while some new hires may be on the way, it'll look like a loss of internal confidence.
Update: Dorsey isn't waiting until later to set the record straight. He says that Roetter, Stanton and Weil are choosing to leave the company, not getting the boot. Human resources veteran Skip Schipper is also on the way out. The departures are leading to some consolidation: Chief Operating Officer Adam Bain will be handling multiple groups (including media and HR) on an "interim basis," while Chief Technical Officer Adam Messinger will oversee aspects like design, engineering and research.
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