Cricket is not rocket science. Bowlers often get wickets through perseverance, accuracy and being patient rather than trying to blast opposition teams out.
In fact, as a spin bowler, you have to work on the batsman over after over.
If you are playing in the right conditions, there is always motivation to bowl fast. If you are playing in the wrong condition then you want to be a batsman.
I have tried to improve on my death bowling.
Great fast bowlers don't have to worry about whether the track is flat or green. They'll find a way to get wickets.
It's true that I have got wickets with the new ball in Test matches, but that doesn't mean that I can't bowl with the old ball.
Being a swing bowler, bowling at the death is just an added facet in my bowling.
A lot of the emphasis on international bowlers is on their pace and Australia coach Darren Lehmann is a big fan of bowlers who can bowl 90mph-plus.
If you bowl well early in the innings, it is also important to finish well.