What is the relationship between Big Lots and retail in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

Jack joins Big Lots after seven years in leadership roles at Walmart and with more than 25 years of global retail experience spanning merchandising, sourcing, category and brand development.

Answer: industry