As the project manager for a team of software developers, your team has been hired to develop a piece of proprietary software for a corporate customer. After a few weeks working on the project your customer announces that they must reduce their budget for your project by $15\%,$ but that the software needs to look and function as originally agreed with no changes.

Using the triple constraint model, what trade$-$off could you use to meet your customer's new requirements?

Change the project goals

Change the timeline

Change the project scope

Change team roles