IAMCP Spain lead Michiel van Vliet prepared a great research about best practices in collaboration with Microsoft based on 20000 interviews and questionnaires, including 5000 Microsoft employees.
A brief of a research by Michiel van Vliet: https://payhip.com/b/3E0j
The full version is available at: https://payhip.com/b/n2zi
IT startup mentoring framework 