The departure of Twitter's chief executive Dick Costolo is the result of a company that "desperately needs fresh thinking" according to the global managing director of social media agency We Are Social, Robin Grant.
In relation to Costolo's resignation after months of shareholder pressure, Grant told The Drum: "When Dick Costolo led Twitter to an impressive debut on the New York Stock Exchange in 2013 it looked as though he was the right person to take the platform forward, capitalising on its new status as a public company.
"However, Twitter struggled with delivering the same levels of user growth and advertising revenue as its larger rival Facebook. This led to a loss of faith in the investor community that has proved impossible for him to survive, he continued."
"Twitter desperately needs some fresh thinking and a sense of purpose to turn things around. As to whether Jack Dorsey can find a new CEO that can provide that, only time will tell."
Co-founder and chairman Dorsey will take up Costolo's responsibilities in the interim period while searching for a successor. Rapper Snoop Dogg has thrown his hat into the ring.