SARATOGA SPRINGS, N.Y. -- George Weaver feels it. So do Chad Brown, Todd Pletcher and Shug McGaughey. Among the many new issues that Thoroughbred trainers across the country must contend with during the 2020 pandemic is a shortage of skilled staff. In recent years, it has become more difficult for horsemen to secure all the H-2B visas that they desire to legally bring foreign nationals into the country as guest workers. The arrival of COVID-19 in late winter closed U.S. consulates, compounding the problems, preventing visa holders from getting their...