could Dalton be a top 5 guy in any given year? yes. Is he there right now? no, but then he is in his second year. He's smart, he's accurate, and he's in the right system for his skillset. So yes, he absolutely could. I'm no Marvin Lewis fan, so I think there are issues with that team going forward, I just don't think they include the QB situation.
but in year 4 or 5? Sure. Add another WR weapon? you bet.