Great introduction to the concept of interim leadership
This book is a great introduction to the concept of interim leadership and it suggests some very practical reasons for how and why an interim leader (vs. a permanent hire) could contribute to the overall effectiveness of an organization.
I found Leadership on Demand very helpful and very timely. A chapter that is especially useful is Chapter 10 and the discussion about the total cost of a FTE vs. an interim.
The authors provide examples and a great template for determining how cost effective an interim is.
This is the best (only?) book I've found that covers all of the details of selecting, hiring and managing Interim executives for sales and marketing. Have seen others but they are all from the Interim consultants' POV. This one is a guide for executives on the pros and cons and methodologies to work with Interims to build revenue and new business. Highly recommended.