George Cope will retire as CEO of BCE at the start of next year. He is 57. It will be the end of a tumultuous 12 years in which Bell went from having doubtful solvency in 2007 to ownership of a huge array of lucrative businesses unrelated to phones. Mr. Cope’s aggressive and money-making style has left no doubt that BCE is indeed solvent. It is valued today at $15 billion. The new president will be Mirko Bibic.