Bangladesh bowling coach Courtney Walsh says progress had been made with the Asian country's bowlers at a training camp in Dhaka.
National team seamers Mustafizur Rahman, Taskin Ahmed, Shafiul Islam, Kamrul Islam Rabbi and others were in attendance to learn from the West Indies legend, who took 519 wickets at an average of 24.44 in 132 matches.
While happy that the camp took place, Walsh was not helped with some steady rain at the Shere Bangla National Stadium but says valuable lessons were taught inside the dressing room.
In quotes published on ESPNCricinfo, Walsh said: "We have been trying to fine-tune and correct some of those mistakes, to improve in certain areas.
"Progress has been made, but unfortunately we have been having some bad weather, so not as much progress has been made as I would have liked.
"But we are not wasting the days. Whenever we can, we are going outdoors. We are having meetings inside, just discussing cricket and trying to get the cricket brain sharp.
"I want to see more consistency, control, variation, and to put more thought into what they are doing. They are young and exciting, but they have to be a little bit more consistent and keep the pace up.
"Once they get on to the park, they have to do it. We can't do it for them. I have been telling them that 'you are in control of your own destiny, just go out there and get the job done. Try to improve and learn all the time'.
"If they can achieve the first part – control and consistency – before competition starts, I will be very happy."
Bangladesh are preparing for a Test series at home against Australia in September.