Piece co-ordination

One of the most important chess maxims is: “It is better to play with a bad plan than no plan.” If you have plan, if you are dropping pieces to short combinations, it will do you no good. So it is better to write this slogan in this way: “It is better to see all three-move combinations than to have a good plan.”
This slogan will work until you are at least at expert level. But once you get to strong expert level and want to make move to the master level, you will find that your opponents make fewer tactical errors. You will have to start relying on piece co-ordination to create position in which you tactical ability shine.
Why plans are important? Certainly, they are not necessary to play the game of chess. After all, chess program do not plan, at least not in traditional sense.