New Bangladesh coach Chandika Hathurusingha said Tuesday he was bracing for a reality check against England but promised an "aggressive" posture when his team take on the reigning one-day international champions.
The three-match series begins in Dhaka on Wednesday and will test Bangladesh at a time when they have developed into a formidable force in the 50-over format.
They have won 12 of their last 15 ODIs, but England are the only visitors to have won a one-day series in Bangladesh since 2015.
"They are the world champions. They have one team playing somewhere else. They have another team here. They have a mind-blowing depth of talent," Hathurusingha said, referring to the England test team's tour of New Zealand.
"We want to see where we are at, and find out the gap that we have to bridge. If we do well in these conditions, it will give us confidence," he added.
"They have one of the best pace attacks in the world. They have five fast bowlers and three spinners on this tour. The challenge will be to play their fast bowlers in this series."
Former Sri Lanka batsman Hathurusingha, 54, returned as Bangladesh coach last week for his second stint at the helm.
During his first tenure he was widely hailed as the architect of some of the national side's finest moments, including ODI series wins against Pakistan, India and South Africa.
But he was often reported to be at loggerheads with Bangladesh's senior cricketers, including current captains Shakib Al Hasan and Tamim Iqbal, while coach from 2014 to 2017.
Since returning, Hathurusingha said he was "very impressed" by the team's commitment and ready for a challenge.
"We played aggressive cricket in my last stint," he said.
"There are many ways of playing aggressive cricket apart from hitting the ball out of the ground. It is the attitude that we are bringing. Whether fielding, bowling or batting, we will be aggressive."
The ODI series will be followed by three Twenty20 internationals, beginning in Chittagong on March 9 before returning to Dhaka on March 12 and 14.