Otis Elevator was acquired by United Technologies $($UT$)$ in $1972.$ A review of Otis$$s operations showed its technology to be outdated.$$ The company$$s products were poorly engineered and were losing money.$$ Its production and research facilities were scattered across the United States with many duplications of work.$$ Research, in particular, was done at two New Jersey facilities, one of which was outdated.$$ UT did all of its research at a major research at a major research and development center in Connecticut; some research for Otis was also done there.$$ UT decided to transfer Otis research from the two New Jersey locations to an expanded facility in Connecticut to allow Otis to redesign its product.$$ The union representing Otis$$s employees alleged that UT had engaged in an unfair labor practice by refusing to bargain with the union over its decision to relocate the work.$$ Was UT$$s refusal to bargain over this decision a violation of section $8($a$)(5)?$ Explain?