The problem is when the goal is to get something out of the door as soon as possible. In such cases developers tend to settle for the first thing that comes to

The problem is when the goal is to get something out of the door as soon as possible. In such cases developers tend to settle for the first thing that comes to their mind, which is rarely an elegant solution. These require experience and time spent carefully designing the system. A profiler shows you what is slow in your current implementation, not how to convert it to a more elegant one.