Every project have 3 pillars or attributes which sets the outcomes of the project. They are

1) Scope and/or Quality

2) Time and/or Schedule

3) Cost and/or Resource

Owner of the project can only control two attributes, while the third one comes it self.It is impossible to have three of them as per desire. It is also called “Triple Constrain” in project management terms, just if in case some one want to read further about it.