Verkkoin the insider’s guide to culture change, acclaimed culture transformation expert and global executive siobhan mchale shares her proven four. Verkkofrom disengaged employees to underserved customers, business failures invariably stem from a culture problem. In the insider’s guide to culture change,. Verkkothe insider’s guide to culture change is a book that just appeared and written by siobhan mchale, an hr leader with deep expertise in culture. Hoag is a family. We strive for greatness, lead through compassion, and proudly take ownership of everything we do. We are a family of.