Miami Dolphins defensive coordinator Vance Joseph will become the coach of the Broncos, league sources said Wednesday. Joseph, who interviewed for the job two years ago when Gary Kubiak was hired, emerged from a field of three to become the 16th coach — and first minority — in franchise history. According to a league source, Joseph reached a four-year deal with the Broncos. Joseph was the third candidate to interview with the organization, meeting for nearly four hours on Tuesday then having dinner with team officials at Elway’s steakhouse in Cherry Creek later in the evening. Broncos general manager John Elway said on Twitter after the interview that Joseph has “great leadership qualities and a strong vision of what it takes to win.”