We want our college football and basketball, just as we all want essential services like groceries and hospitals to stay open through the Covid-19 pandemic.  But Craig Garthwaite of the Kellogg School of Management at Northwestern University says all those demands put unfair burdens on unpaid athletes and poorly-paid workers of color to serve a richer, Whiter clientele.  For college athletes, at least, Garthwaite says, change does seem to be on the way.