With the recent rich vein of shirtfronts infecting our centre squares, penetration - likelihood of taking a wicket - has become a dying art among bowlers of both persuasions. Who's the worst offenders in this category?
Which raises other questions: what is penetration? What is it that makes these bowlers roaring successes at domestic level yet abandons them in their - and their country's - hour of need?
At the same time, why is it that some bowlers can look harmless - the definition of unpenetrativeness - but still take wickets with a steady flow (Giles, Razzaq)?