Consistency figures reward bowlers who never threaten

A tight line is the baseline of the job, and measuring how often a bowler finds it can hide that he never asks a question.

Pitch maps have made everybody a technician. You can see, over a spell, exactly how tightly a bowler grouped his deliveries, and the tight cluster looks like mastery. Often it is. Sometimes it is a bowler who has found the one length nobody can score off and nobody can be dismissed by, and has settled there because it produces figures that survive scrutiny.

The corridor works because of doubt. A ball that might be driven and might not is the whole point, and the batter has to decide with the ball halfway down. But doubt is created by variation around a good length, not by hitting the same spot eight times. The sixth identical delivery carries no doubt at all, because the batter has already played five of them and his feet have stopped moving.

Which is why I distrust consistency as a headline virtue. In a four-day match with a heavy roller and no dew, the accumulation of identical deliveries genuinely does build pressure over a long spell, and the wicket falls to the tenth one because the batter got bored. In shorter formats that mechanism does not exist. The batter is not waiting for anything. He is calculating an over rate, and a bowler hitting the same spot repeatedly is the easiest possible thing to plan against because he has told you what is coming.

The comparison I would want is not how tightly the deliveries grouped, but what happened to the batter's front foot. If it kept committing forward and then having to check, the bowler is doing something. If it settled into the same movement every ball, the tight cluster is decoration.

There is a coaching consequence I feel strongly about. Young quicks are now shown their maps after every spell and rewarded for grouping, and the natural response to that feedback is to bowl safer. Fewer bouncers, fewer full ones, fewer of the deliveries that go for four and occasionally take a wicket. You end up with a generation of accurate bowlers who take three for sixty and never four for thirty.

Accuracy is the price of entry. Being difficult to face is the actual job, and the map cannot show it.