We were surprised to learn last week that Coast Real Estate Services of Everett sold its brokerage business- but more interesting is the intrigue behind the deal. A year ago, Coast co-founder brothers Tom Hoban and Shawn Hoban put their 30-year-old commercial real estate company on the research-and-development track. It happened around the time they launched a facilities management company, Coast Workplace Solutions, which bundles staffing and vendors to provide services to clients at a lower...