For “The Americans” masterminds Joel Fields and Joe Weisberg’s latest assortment astatine FX, the duo decided to model 1 of the primary characters Jewish — however person him performed by Steve Carell, who is-not Jewish. Amid an improve successful scrutiny of casting decisions similar this made for movie and TV projects, the producers defined their private reasoning for the transfer to reporters throughout a digital sheet for “The Patient” astatine the Television Critics Association summer season property circuit Tuesday. “When we acquired here forward with the unique idea, the standard wasn’t initially Jewish,” Weisberg said. “And previous you start, arsenic...