Novartis pharma head Epstein steps away, most recent loss in string of top-level turnovers Novartis (NYSE:NVS) is facing an upheaval in its top management, seeing 7 departures over the last 5 months as shares fell 25% since last July. Last week, Novartis pharmaceuticals head David Epstein quit as his division was split up. Earlier in the month, U.S. […]