Tania Tetlow, the newish president of Fordham University, was in New Orleans, isolating with a case of Covid over winter break, when she learned that Claudine Gay had been forced to resign as Harvard’s president. She did not know all the facts of the case, but it was still a sobering moment.  The ability to navigate through turbulence is one of the many assets that brought Ms. Tetlow to Fordham. Added to her wide-ranging résumé — putting murderers and drug lords in jail as a federal prosecutor in New Orleans, challenging longstanding gender barriers while untangling the finances of a foundering institution, singing the national anthem at Yankee Stadium — Ms. Tetlow’s somewhat unusual profile seems uniquely suited to Fordham.