Last year, the number of workers coveredby a union contract rose to 16.5 million, the highest raw total since 2009. In theory, this increased representation should mean the National Labor Relations Board—the federal agency that protects the right of private-sector employees to organize, and adjudicates alleged unfair labor practices (ULPs)—will be awfully busy. For an agency that has long suffered from a workforce and inflation-adjusted budget decline, the growth of the organized workforce s…