The elected commissioners at south Snohomish County’s largest and most political fire district have hired an executive coach to help them get along. They say the coach will prepare them as Fire District 1 pitches a merger to voters in the primary election this summer. Meeting records show they also thought the move would alleviate public relations problems from a race-related controversy in March. That’s when two commissioners were taped making insensitive comments about immigrants. The controversy apparently has hurt the district’s efforts to find a new fire chief, records show. That was a secondary factor in hiring a coach, board Chairman Jim McGaughey said.