Nackgammon was designed to make players think positionally rather than just run for it. An early blitz in nackgammon probably won't work either as there are not enough men available in your half of the board. So a blocking game of some sort is more or less essential. If both players escape 2 of the back men quickly then it can turn into a game of backgammon. Otherwise it tends to develop quite differently. Very little seems to have been written on nackgammon strategy and the strategies of the better players seem to vary quite widely.