A few days ago I started watching Football's Greatest Managers on YouTube. They are about a half hour in length and very interesting. Thanks to Ö-zil for providing a link in one of his threads!
From there I dug into everything I could find on the magnificent team of José Mourinho that won the everything they played in 2009/10. For me easily top 3 sides in newer history, I can only think of Bayern under Heynckes and Barca under Pep as equally good. Anyways, there are some great docus out the