'Our performances have been spot on' - Clarke
Clarke was one of only two men in the side who was part of the team that lost to Bangladesh in Cardiff in 2005 and it is a memory he does not like reliving. He is also undefeated as Australia's ODI and Twenty20 captain and on this occasion he was comforted by the depth of his attack.
"With 200 on the board I was confident if we bowled well we could win the game and once again our bowlers did a great job," Clarke said. "Bangladesh batted well at the start, they were positive, but we all knew if we could just take one or two wickets it would put them on the back foot."
That moment came when Shakib Al Hasan, who had joined with Tamim for a 60-run stand, pulled James Hopes to midwicket. It started a procession of wickets - the last six fell for 43 runs - and for the third time in the series made it difficult for Clarke to give all his bowlers lengthy spells as they prepare for the upcoming tour of India.
The batsmen did have the chance to spend longer at the crease, although only Michael Hussey made full use of that by making an unbeaten and laborious 57. Clarke has struggled to have an impact with the bat in Darwin - he joked that the team's No. 3 "was horrendous" - but he is happy the players have simply shaken off any post-winter rust.
"We wanted to leave 3-0 winners and we've done that," Clarke said. "The end result, it was closer than the first two games, but our mindset was to win this game. If it was by one run we weren't really bothered.
"Our performances have been spot on, I think our preparation has been unbelievable, been really good. The guys have been very disciplined trained hard, even days before the games, and that will hold us in good stead either for the next one-dayers in the Australian summer or the Test series in India."
Brydon Coverdale is a staff writer at Cricinfo