If you list all Test cricketers by their bowling average, the three of them appear consecutively: no-one else has a Test bowling average of 20.9x .It's pretty absurd that these 3 West Indian fast bowlers ended their careers with such awesome averages so close to each other
Marshall - 20.94
Garner - 20.97
Ambrose - 20.99
Also consecutive are Waqar Younis (23.56) and Wasim Akram (23.62). And, temporarily, England's batting all-rounder captains Tony Greig (32.20) and Ben Stokes (32.21).