sayon basak
International Captain
Guess he was talking about peaks.At this stage of their careers their WPM are very similar but Bumrah is a standard deviation ahead in average
As Bumrah has played for 6 years, I'm gonna compare Marshall's 7 year peak.
Malcolm Marshall (1983-1989):-
292 wickets @19.229; WPM of 5.41, 4 ten wickets in a match.