Supplier Question for SCM/Ops

Suppose that you work for a company that manufactures bicycles. ; Although you make some of your own parts, you buy others. ; At meeting you recently attended two managers were debating the virtues of having multiple suppliers for the brake assembly. ; One manager favored having multiple suppliers and the other felt the company would be better off having a single supplier. ; You are tasked with drafting a defense to both sides of this argument and making a final recommendation. Please be detailed in your response and use terms related to your learning in these areas (SCM/Ops).