BHDM Design, an award-winning, bi-coastal interior design firm, has announced the promotion of Stephanie Metzger, Sheila Cahill, and John Doyle to new directorial positions. Metzger has been appointed as Senior Director of Concept and Experience, Cahill will hold the role of Senior Director of Design and Development, and Doyle will serve as Director of Design and Development. Their impressive work and leadership at BHDM and extensive experience in the design industry have equipped them for these new positions as the firm continues to grow. “Stephanie, Sheila, and John are integral members of the BHDM team, from a professional and design…