The Boston Symphony has decided to change the work rules for its hall crew. “It is no secret that BSO management has wanted to cut overtime for the non-unionized crew for years. Cost is not the only issue, as the symphony will save no more than $250,000 by making the overtime cuts, according to a symphony official who did not want to be identified because BSO officials prefer not to speak on personnel matters. The move is also about modernizing an old-fashioned way of operating the department, the official said.”