If we consider only the ODI format, then it can be said that Bangladesh is a strong team. And Bangladeshi players are consistently performing well in the ODI format now. And so Bangladesh can reach the semi-finals in the 2023 World Cup, if they can continue this streak. And I would say Tamim's decision is right. If he concentrates completely on the 50-over matches, we will get better performance from him in the World Cup.
Having serious trouble in t20i and Test formats but doing amazing job in ODI is surely good from them, but they need to go on grassroots for all formats which will give them better results
A few days ago the enthusiasm of the cricketers that was seen in Bangladesh cricket is disappear. There is some kind of contradiction in the team which will hamper their cricket. They played well in ODIs against West Indies but as the T20 World Cup is around the corner, they should have a quick communication with everyone involved in the team.