AT&T Chief Executive John Stankey says in an interview on CNBC that the cable companies and the cell carriers will likely need to consolidate over the next 10 years. AT&T, he says, is focused on growing organically, and he believes it has the fiber assets and the cell towers to stand on its own. Others, though, will need to reorganize their assets to compete in a cable-wireless sector that is increasingly converging. He didn’t name companies, though AT&T’s biggest competitors are Verizon and T-Mobile. The biggest cable competitors are Comcast and Charter.