A silver maple leaf. The silver maple tree is a relatively fast-growing deciduous tree, commonly reaching a height of 15â25 m (49â82 ft), exceptionally 35 m (115 ft). Its spread will generally be 11â15 m (36â49 ft) wide. A 10-year-old sapling will stand about 8 m (26 ft) tall.he silver maple tree is a relatively fast-growing deciduous tree, commonly reaching a height of 15â25 m (49â82 ft), exceptionally 35 m (115 ft). Its spread will generally be 11â15 m (36â49 ft) wide.
Twitter COO, 'co-CEO' and 'Mr Fix It' Ali Rowghani resigns. Ali Rowghani, COO of Twitter, has resigned. Twitter COO, 'co-CEO' and 'Mr Fix It' Ali Rowghani resigns. A key Twitter executive has resigned as the social media company struggles to convince investors that it can attract new users in the US. Ali Rowghani, the chief operating officer, had been charged with drawing more users to Twitter but growth has continued to be lacklustre and Twitterâs share price has fallen sharply. The company said it âdoes not intend to hire a replacement for the COO role, and all of Mr Rowghaniâs operating responsibilities will be assumed by other members of the Twitter management teamâ. Rowghani tweeted: âGoodbye Twitter.
Dorsey would assume the post of Interim CEO upon Costolo's departure. He was named permanent CEO of Twitter on October 5, 2015. As the service began to grow in popularity, Dorsey chose the improvement of uptime as top priority, even over creating revenue â which, as of 2008, Twitter was not designed to earn.