When Tampa Bay players leave Steinbrenner Field following the New York Yankees’ spring training home finale on March 23, their staff will launch a 120-hour transformation of the ballpark for the Rays’ season in exile from storm-damaged Tropicana Field. By the time the Rays return for their March 28 opener against Colorado, more than 3,000 unique signs and advertising boards will have been installed. The large letters spelling “YANKEES” above the first- and third-base stands will have been covered with Rays markings along with the interlocking “NY” in the center of the clubhouse. The team store will have been emptied of pinstriped gear and restocked with Rays apparel.