If its true its not good. he is nice .... there is a positive and there is a negative to it specially when you are coaching Bangladesh. What happens when Mashrafee retires? What happens when bangladesh struggles? What happens when there is again sign of laziness and indiscipline in the team? Is he capable to handle those? That is something to witch out.... I have no opinion at this point but will be watching more in this regard.
Now it raised the other question. Did the team significantly improved? batting yes. Bowling and fielding? Not sure. Is its the head coach or the batting coach deserve the credit?
btw I don't think Sakib need to be coached, he is self coach able. So I give no added credit to the coaches for Sakib, except for setting up the environment for him to perform.
Anyway after world cup there will be plenty of time to follow this issue.