Andre Adams lauded Nahid Rana's bowling display as his five-wicket haul helped the tourists take control on the third day of their second Test against the West Indies.
Starting the day 70-1, the West Indies were dismissed for 146, with Rana (5-61) adding four wickets to his total, having caught and bowled out Mikyle Louis (12) on day two.
Keacy Carty (40) top scored for the hosts, with Rana aided in his attack by Hasan Mahmud (2-19), which gave the tourists a lead of 18 runs ahead of their second innings.
Bangladesh rallied from the early loss of Mahmudul Hasan Joy (0), with the Tigers' opener dismissed by Jayden Seales (1-43), who took four wickets in the previous innings.
Shadman Islam (46) and Mehidy Hasan (42) steadied the ship, but both fell to Shamar Joseph (2-70), before Jaker Ali's unbeaten 29 took the tourists past the 200-run lead mark.
At stumps, Bangladesh were 193-5, an advantage of 211 runs with Jaker and Taijul Islam (9) returning to the crease for day four at Sabina Park in Kingston.
"A very good day, really. Very happy with how our bowlers are going. The batting has been different today, but nice to see,"
Given that the highest successful run-chase in a Test match at Sabina Park is just 211, achieved by the West Indies against Sri Lanka in 2003, history would appear to be on the side of the tourists, forcing a series-levelling victory over the final two days.
And Bangladesh have Rana to thank following his maiden five-for, with head coach Adams highlighting the 22-year-old's significant improvements over the last 12 months.
"We knew it was coming at some stage. When you bowl at 150kph you're going to take wickets at some stage. What he has done in the last year is become accurate.
"He's improved on that more. He is very keen, and he has a lot of pace. We just try to give him some instructions and let his instincts take over.
"He's a young bowler, he bowls fast, so you have got to look after his bowling loads.
"He's young but luckily, we have the likes of Taskin and Hasan to help him and a captain like Mehidy."