Politics of the Possible

In Government, giving the people exactly what they want, is not always the best solution. It is also not always possible or practical. Government's have limits just as the people running them do as well. Politics of the Possible is a good alternative to giving the people exactly what they want. You can view the situation and determine what can be done from there with the available resources at hand. Is it a bad policy move to give the people exactly what they want and then asses what can be done after the fact?