James A.O'Brien Introduction to Information Systems Eleventh Edition 4 The Competitive Environment Threat of New Entrants Bargaining Power of Suppliers Rivalry Among Existing Competitors Threat of Substitutes Bargaining Power of Customers James A. O’Brien Introduction to Information Systems Eleventh Edition 4 The Competitive Environment Threat of New Entrants Rivalry Among Existing Competitors Bargaining Power of Customers Bargaining Power of Suppliers Threat of Substitutes