On Oct. 14, Bloomberg News's Hannah Levitt was the first to report that Wells Fargo & Co. had fired more than 100 employees suspected of improperly collecting coronavirus relief funds, an important step as CEO Charlie Scharf seeks to bring the bank back from rock bottom after years of scandals. And just this week, two of Morgan Stanley's most senior commodities executives left after compliance breaches linked to WhatsApp and other electronic forms of communication. My Bloomberg Opinion colleague Elisa Martinuzzi viewed the Morgan Stanley departures as evidence that big investment banks might have been less effective in policing staff behavior during the recent work-from-home era.