I think our pacers only work on their fitness when they are around the national team setup, otherwise bowlers liKe Talha or Taposh Baysho should have been able to make comebacks just like mohammed sami, razzaq did for pakistan. It could be due lack of facilities to be in shape but i largely blame it on lack of positive attitude. Everytime there is an interiew from a cricketer out of the side the tone is always that of a victim.
Pace bowling requires a lot of mental discipline and seeing how fat mashrafi becomes everytime he is out due to injury tells me that the need for biriyani is a lot stronger than the need to be the best at the moment.
Navigate the seas of the Sun