It would probably be a failure. I understand he's a big talent. But the idea that a player can come off the back of a Rugby League season, go straight to Union - which I believe is what the logistics entail here - and learn everything needed in that season is a pretty tenuous one. The switch has rarely worked out that quickly in this country. If he, or Sam Tomkins, or any Leaguie wants to play for England at the World Cup they are probably too late. For me at least. I can just imagine Bomber and Farrell promoting such a guy quickly. I don't think that's a good thing.
The idea of more of our top Leaguies converting is one I love but there needs to be a bit more respect for taking time to learn the game properly there.