Embattled media giant Disney is expanding its search for Bob Iger’s successor beyond the the walls of the Magic Kingdom, according to a new report. The Mouse House had been mulling a handful of internal candidates, but is now working with recruiters from search firm Heidrick & Struggles to conduct its review of external contenders for the top job, The Wall Street Journal reported Tuesday.One possible successor from the outside is Electronic Arts CEO Andrew Wilson, a name that has been consistently floated i ...