These relate to the number of times they won a trophy in relation to the number of years they took part. For example, Bob Paisley won the league in 67% of the seasons he was in charge.
League Championships
Paisley: 67%
Ferguson: 42%
FA Cups
Paisley: 0%
Ferguson: 28%
European Cups
Paisley: 43%
Ferguson: 9%
UEFA Cups
Paisley: 100%
Ferguson: 0%
Cup Winners Cups
Paisley: 0%
Ferguson: 50%
European trophies in total
Paisley: 44%
Ferguson: 13%
League Cups
Paisley: 33%
Ferguson: 5%
European Super Cup/World Club Champs
Paisley: 33%
Ferguson: 50%
Charity Shields
Paisley: 83%
Ferguson: 45%
Manager of the Year
Paisley: 67%
Ferguson: 37%
Using money as an indicator, only twice did Paisley break transfer records to buy players. Kenny Dalglish was a British record while Graeme Souness was a record between two English clubs.
Ferguson by comparison has broken the British record on many occasions in various categories.