Two senior employees of the TTC have paid with their jobs for the cost over-runs on the Toronto-York Spadina Subway Extension. TTC Chief Capital Officer Sameh Ghaly and Andy Bertolo, chief project manager for the TYSSE, “are no longer with the organization.” Andy Byford, chief general manager, said: “As CEO I felt a change in leadership at the TTC was required at this crucial time,” he said. It is not clear what Mr. Byford knew about the over-run and the public may wonder how a sum of $400 million in unplanned expenditures would not be noticed by many people. Earlier this month, Byford told Mayor John Tory and TTC chair Josh Colle about the “possibility of a significant cost overrun” for the Spadina extension. It runs from University-Spadina line through York University and up to Vaughan.