stadium. Those will be big selling points he can use in recruiting.
He probably thinks he can turn them around in 2-3 years and move onto a bigger job, and he might be right. If he takes them to a bowl game his first year and then improve on that in his 2nd year, he will probably be getting some attention from some big schools.
And he knows that can always get a top level DC job at any time if things don't go well at UNLV.
Of course he may not even take the job, it looks like the reports of him accepting it were pre mature.