Adaptability/Learning Curve:
Mustafizur is still a new entity in world cricket. Barring the subcontinent teams, most of the other teams have not played more than 4-5 matches with him. As he bowls more, the people would find out his pattern through video analysis etc. E.g. Australian all-rounder James Faulkner was a hot death bowling option until last year, his back of the hand slower balls per unplayable. But now people have played enough matches against him (IPL, International arena) and have figured him out. Now he also tries to bowl wide yorkers, slower ball bouncers etc. Mustafizur’s learning curve/adaptability to these phenomena would be crucial to his success in future.