Late Middle Game Positioning
Generally, he who occupies the field of battle first and awaits his enemy is at ease; he who comes later to the scene and rushes into the fight is weary.—Sun Tzu, The Art of War
As soon as the play shows signs of leading into an endgame, reconsider the position from that point of view. If you feel uneasy about it, defer the endgame as long as you can and utilize the time gained in improving your chances for the ending. If, on the contrary, your chances are good, bring about the endgame as quickly as you can ...