In an interview, Mehel reiterated that one of her regret in Yahoo was the employment of the wrong chief operator, Enrique De Castro (Henrique De Castro), who had been dismissed 15 months after working with COO. Under the leadership of Mayer, Yahoo purchased the social blog platform Tumblr in May 2013, with a total cash transaction of $1.1 billion. A source at the time revealed that Mayer was “involently involved in the transaction” and that several times he was going to go to night. However, ...