Yes they would start off at a lower prem, upper championship level, but the crowds they both draw and the commercial advantages they have along with bigger TV funds, they would be top half of premier league within a few years.
if they managed to avoid relegation. They'd still be trophy less, not in Europe and just making up the numbers though. A far cry from where their fans think they'd be.
Onto Johnston.
I like Mikey Johnston he's similar to Fellows in that he's direct and likes to take a man on. His delivery isn't as good as Fellows but he's a lot better than many were anticipating.
I'm not sure I'd try to get him permanently though as I don't think he's premier league quality and that is ultimately where we are trying to be. A season long loan next season would be okay though.