Way too much second guessing going on about a squad player looking for a bigger opportunity. If he stays at Melbourne he's not second fiddle, he's third fiddle. He knows this. If he comes to Newcastle he's joining a team starting at the bottom and moving in the right direction, with a coach proven to give opportunities to players based on effort, commitment, training, leadership etc.
To players like Griffin, coming to Newcastle is not as simple as "where will I fit in the 17?". Brown will not have guaranteed him anything but a fair chance to play a lot of NRL depending on form, injury, team balance. There's nothing wrong with that. The good teams have players champing at the bit for a go in first grade.
Why do we need to know now, in September, where Griffin will play one way or the other? I doubt Brown knows. I doubt Griffin knows, or even cares yet. What he does know and care about is that he will have every chance to make his mark because we're a club that won't hesitate to back him when the time comes.
It's a long season and things happen. My prediction would be that you will all be correct in some way - he won't be first choice if everyone is fit, Buhrer will fill in at dummy half to cover for Levi, Fitzy will make the bench, but Griffin will play 8+ NRL games purely by hovering around as 18th man every week and being versatile. He'll be named in the 21 on Tuesday every week and he'll play as much or as little as required based on how the season pans out. Whatever happens will likely be an upgrade in his career NRL involvement.
I don't understand why we need to call him a top 17 player or a a bad recruit like it has to be one or the other. In the premier league very good players go to new clubs to play more minutes, players much higher up the food chain than Slade Griffin. It's all about building a competitive and adaptable squad.