Compare the customer service of PepsiCo in today and the past 10 years. How do they manage their customer services? Also, make sure to include the 5 key concepts of supply chain management: Trade-Offs, Visibility/ Velocity/ Variability/ Virtualization, Collaboration, Management of Flows and Value Creation. Please post some references for me.

Some references:

https://ca.2shay.co/pepsico/

https://www.pepsico.ca/docs/librariesprovider15/default-document-library/pepsico_canada_customer_and_consumer_service_statement_ontario_and_man.pdf?sfvrsn=498f68e_4

https://www.forbes.com/sites/greatspeculations/2016/03/16/how-pepsico-is-improving-its-brand-loyalty/?sh=384ecbcb1555