Cowboys coach has a sweet calculator folder

What’s that for, Scott Linehan?

Is that for calculating Tony Romo’s passer rating on the fly? For determining how badly the Lions are beating the Cowboys in the first half down to the decimal point? What could it be?

Oh.

For real, though, why would the Cowboys’ passing game coordinator need a calculator? I can’t think of a good reason, and I’m pretty sure he just bought the folder with the buttons on it because it seemed fancy.