I had a discussion with some friends supporting other teams this weekend. There we got in to a beer-heated argue about which manager who got the best transfers in one season. Regarding price, how important they became for the club, and for some clubs (smaller club-fan..) price when sold. Disregarding youngsters coming through the ranks. To rate it a good transfer, the player must have performed 4-5 years at the club, or brought in big cash after staying in the club for a shorter period of time. After googling I felt this season stands out for United as for value and transfers: Sir Alex 2005/06 with Vidic (£10M), Evra (£7M), Park (£7M) and van der Sar (£3.5M). Mourinho 2010/11: had a rather good transfer-season in Real Madrid back i 2010/11: Price (bought/later sold price) Di Maria (£29M/£67M), Khedira (£12M), Özil (£15M/£42M) Mancini in City 2010/11 had one of their best windows, despite blowing what seemed to be too much money at the time: Milner (£20M), Kolarov (£20M), Silva (£26M), Yaya (£27M), Dzeko (£33M) Others who can think of a transfer season for a club that stands out?