麻豆约拍

Four top executives are leaving Twitter in the next few weeks. Since co-founder Jack Dorsey returned to the micro blogging site as chief executive last year, the company's value has fallen by over 35%. The firm appears to be struggling in the face of tough competition from the likes of Instagram and Snapchat. The corporate shake-up will see the departure of key personnel from the company's product, media and engineering divisions. Stuart Miles, founder of the media technology website Pocket Lint told Susannah Streeter it shows Twitter is struggling to find a sense of direction.

(Picture: Twitter logo. Picture credit: Getty Images.)