They made the mistake of sitting on the QB situation last year. Then had to make a trade. Seemed reasonable at the time, but turned out not so much.
I wouldn't mind bringing him in for some competition. If they choose not to bring him in, then I won't rue it either.
Moore should not be handed the backup role, he needs to earn it. I don't think Prescott should be thrown into the fire, if he is to be groomed to be successful. But then again, why not, see what he can do. Though prefer he sits a few years. Unless another QB drops in their laps in the next few drafts.
Showers is not the answer either.
So bring someone in, let Moore and Prescott show why they are here, and earn their roster spots.