Twitter CEO Dick Costolo dropped a grenade into the Twitter-sphere on Thursday afternoon, when he announced that he is stepping down and co-founder Jack Dorsey is coming in as interim CEO of the company. Investors seemed to like the news, pushing Twitter’s share price up by as much as 5% following the announcement—but that sense of euphoria could be short-lived. At this point, Twitter is a rudderless ship, and there’s no sign that anyone is waiting to seize the wheel and steer her to safety.
As my Fortune colleague Dan Primack has pointed out, analysts have often mentioned chief financial officer Anthony Noto or head of sales Adam Bain as potential replacements for Costolo, but both of them are problematic choices for a number of reasons.
Also read: Ex-JetSmarter president Barskey arrested