On a serious note, is he the greatest ever?
"In nine years as manager, Paisley led Liverpool to win twenty honours - six First Division Championships, three League Cups, six FA Charity Shields, three European Cups, one UEFA Cup and one UEFA Super Cup. He is often cited as one of the greatest football managers of all time, and is to date the only manager in history to have won three European Cups."
Football League First Division (6): 1975-76, 1976-77, 1978-79, 1979-80, 1981-82, 1982-83
League Cup (3): 1980-81, 1981-82, 1982-83
FA Charity Shield (6): 1974, 1976, 1977, 1979, 1980, 1982
European Cup (3): 1976-77, 1977-78, 1980-81
UEFA Cup (1): 1975-76
UEFA Super Cup (1): 1977
20 trophies in 9 seasons
vs
Premier League (13): 1992-93, 1993-94, 1995-96, 1996-97, 1998-99, 1999-2000, 2000-01, 2002-03, 2006-07, 2007-08, 2008-09, 2010-11, 2012-13
FA Cup (5): 1989-90, 1993-94, 1995-96, 1998-99, 2003-04
League Cup (4): 1991-92, 2005-06, 2008-09, 2009-10
FA Charity/Community Shield (10): 1990 (shared), 1993, 1994, 1996, 1997, 2003, 2007, 2008, 2010, 2011
UEFA Champions League (2): 1998-99, 2007-08
UEFA Cup Winners' Cup (1): 1990-91
UEFA Super Cup (1): 1991
Intercontinental Cup (1): 1999
FIFA Club World Cup (1): 2008
38 in 26.
Yes I'm a Liverpool fan but surely the obvious answer is Paisley. How many attempts as Ferguson had at the European Cup over the years, 3 in 9 attempts blows anything he's achieved away.
Also worth remembering that Ferguson won nothing for the first 3 seasons and there were banners at Old Trafford calling for him to leave. He was fortunate that his winning of the title coincided with Sky pumping massive amounts of money into the game and rewarding success like never before. What could Paisley have achieved if given similar backing compared to the relatively level playing field of the 70s?