Last time Cora was manager, he hit 5th or above 17% of the time. He spent the majority of his time hitting 6th or 7th (27% and 25%, respectively). He also had way more PA's hitting 8th or 9th (30% combined).
I think Vaz may hit 5th from time to time, but he's more likely to be a 6th or 7th hitter depending on how well he's going.