mattfb
Chairman of Selectors
The way you get a batsmen out is to encourage them to attack you, and that was Hauritz problem at the start of his career, he just bowled darts.
Unless your naturally gifted like Murali, it's not an easy thing to get a batsmen out as a finger spinner if they are looking to defend.
Vettori has 313 wickets. 203 of those have been out by caught. That sounds like he encourages the batsmen to attack him to me. A dart bowler would attack the stumps and the pads, more LBWs and bowled.