"Improve the position of your worst placed piece."
For better players, determine which is most effective:
1 Improve the position of your worst placed piece.
2 Exchange or minimize the potential of your opponent's best-placed piece (e.g. trade off their bishop on a long diagonal)
3 Maximize the potential of your best-placed piece (sometimes by a sacrifice)
4 Prevent your opponent from developing some pieces
This is over-simplified, of course, but the balance of the position must be taken into account.
"Improve the position of your worst placed piece."
For better players, determine which is most effective:
1 Improve the position of your worst placed piece.
2 Exchange or minimize the potential of your opponent's best-placed piece (e.g. trade off their bishop on a long diagonal)
3 Maximize the potential of your best-placed piece (sometimes by a sacrifice)
4 Prevent your opponent from developing some pieces
This is over-simplified, of course, but the balance of the position must be taken into account.