They face the Black Caps for the second time having lost to the same team last week, although they collected two wins against hosts Zimbabwe at the Harare Sports Club.
Bosch believes they were just not tight enough in their performance at certain stages last week, which ultimately cost them the game by 21 runs.
"It's something we pride ourselves on to be ruthless at all stages of the game," Bosch said in the build-up. We took our foot off the paddle, especially in the field towards the back end of that game, and gave away some easy runs, along with a costly dropped chance that may have swung the game even more in our favour. But we've addressed it, and I think in our last game we were pretty ruthless with the ball and we will need to do more of the same."
Bosch admitted that the World Test Championship last month has instilled a new sense of belief into the team, which will also give them an extra edge heading into today's game.
He says the big win over Australia at Lord's showed that anyone is beatable in any format of the game.
"I there is that quiet belief amongst the players that we can get it done as you said and showed that we are a world class athlete we can beat anyone in the world.
I think that start to filter into all avenues of our cricket and I think it’s an exciting time for cricket in our country and as I said there so much more talent that’s left to be explored in our country itself so it’s an exciting time to be part of this moment."
--SABC--