Baird analyst Colin Sebastian said he "naturally" has concerns about Jack Dorsey's dual role as CEO of both Twitter and Square, but he still views the appointment as a positive development that settles a major source of uncertainty for the company. Sebastian also applauds the promotion of Adam Bain to COO, stating that the executive is "well-liked and respected" both inside and outside of the company. The analyst, who sees user acquisition, pace of improvement and long-term monetization as among Twitter's major challenges, keeps a Neutral rating on the stock.