Yes, there are links, particularly in the areas of organisational development, coaching, change management, and executive search. The links are perhaps less strong in other areas (e.g. IT or investment consulting).You may get responses additional to this thread by targeting the OD Answers section on LinkedIn or, if you're doing formal academic research, approaching firms such as RightCoutts, Workdirections, Towers Perrin, Whitehead Mann, and Performance Partners with a request to survey or interview some of their employees.