"Sloan Fellow" Programs are one year on-campus masters degree in management for experienced executives.
These programs often welcome students who already hold an MBA or similar degrees.
LBS
One year MSC
https://www.lbs.ac.uk/sloanfellowship.html
"There is a difference between the Sloan degree designation, which is an MSc in Management and an MBA.
The MSc in management offered for the Sloan Fellowship covers all the key areas of general management and electives. However, the curriculum is a refined version of that offered to MBAs, and includes programme specific courses such as Understanding Top Management and the Personal Planning and Development components, which are designed for managers and professionals with substantial experience"
Stanford
Stanford offers a 10 month MS in Management
https://www.gsb.stanford.edu/sloan/acade ... mpare.html
MIT
MIT has a more elastic view of the Sloan Fellow concept.
https://mitsloan.mit.edu/fellows/faq.php