Petco Health and Wellness Co. signage outside the Nasdaq MarketSite during the company's initial public offering (IPO) in New York, U.S., on Thursday, Jan. 14, 2021.Petco announced Wednesday that its CEO Ron Coughlin is stepping down, and said board member and Best Buy executive R. Michael Mohan will take over as interim chief executive as the company searches for a permanent replacement. Coughlin will serve as an advisor to the board to "support the leadership transition." In a statement, he said he's prou ...