Or maybe its time we realize none of our players have T20 skills. All the bowlers can aquire them, but as of now none do, Shakib and Razzak come closest. But all the pacers are equally clueless.
Of the batsman I guess only Shakib knows how to play T20 and he's only got this one innings. Ash used to know how. Tamim has ability but hasn't performed yet. Nasir has ability too.
When at least 7 out of 11 players are not at all suited for the format you will suck and suck terribly.