The commentary theory that tight overs force mistakes survives mostly because nobody checks what actually gets batters out.
Dot ball pressure does not buy you wickets
Four dots and a wicket. The camera cuts to the bowler, somebody says the pressure told, and the theory renews itself for another season. I have stopped believing most of it.
What gets a batter out in white ball cricket is usually a ball that deserved a wicket. A length error the batter misjudged, a genuine change of pace, a spinner who got one to hold up in the surface. Those things arrive on their own schedule. The four preceding dots did not manufacture them, and the batter who has just watched four dots is often more likely to hit the fifth ball into the stands than into the hands of long off, because he has decided the over is his last chance.
The honest version of the pressure argument is narrower and I think it holds. Dots do not create wickets directly. They create a required rate, and the required rate creates situations where a batter must take a risk he would otherwise decline. That is a real chain, but it operates over ten overs, not over six balls, and it only bites in a chase or when a target has been set high enough to matter.
Which points at a different plan. If wickets come from good balls rather than from accumulated tension, then a captain should be spending his best bowler's overs where the wicket is worth most, and worrying much less about whether each individual over was economical. That means bowling your strike bowler at the new batter, not saving him for the death. It means an attacking field in the eighth over when the ball still does something, even at the cost of a boundary.
Most captains do the opposite. They protect the economy rate because the economy rate is the number that gets discussed, and they hold overs back for a phase where the pitch is flat and the batter is set.
There is a squad building version of the same point. Teams keep picking a containing bowler for the middle overs, someone whose job is to hit a length and go for six an over. A middle order pair that is allowed to face twelve overs of that will win most games from any position.
Give me the bowler who buys wickets and occasionally gets hit. The other kind loses quietly, which is worse.


