Disagreeing on a project

A: Mr. Crandall, I’m sorry, but I really don’t see the value in doing this entire project over from scratch. It would take a lot of work.

B: That’s certainly true. But, that’s what this job is all about, Maria. There's no doubt that this project is unacceptable.

A: I agree. But I think that we can handle the problem by making a few major changes. I’d appreciate it if you would give me a chance.

B: All right, Maria. I’ll give you until tomorrow at 4:00 to produce a satisfactory piece of work, but otherwise, you’ll have to re-do it.