<sod >The head of continental Europe at crisis-hit telecoms giant BT is leaving the group after the company earlier this week announced that an accounting scandal in its Italian business was far bigger than originally feared.< eod>< sod > The head of continental Europe at crisis-hit telecommunications giant BT is leaving after the company earlier this week announced that an accounting scandal at its Italian business was far bigger than originally feared, causing shares to suffer their worst day in history.< eod>