Succession planning is a hot topic for many Dayton-area firms right now as their founding leadership team nears retirement. Without a good succession plan, many firms close or sell out to others when their owners retire. C.H. Dean took a nontraditional approach when it began planning for future leadership in 2006. The Beavercreek-based financial firm brought on four new key staff members to lead the money management business, but decided to let them stay in Kansas City, where they at the time worked…