TMM straight into first grade would be f**king crazy. He has been injured for several months. His match fitness is down and in the current side he would be under a lot more pressure as he wouldn't have Jamie Soward there to let him feel his way in the game.
Considering we threw Hardaker straight into first grade I am expecting TMM will be in before he is ready again also. He was struggling for fitness in his debut game (not that you would have known if he didnt mention it) despite having had a full pre-season, trials, a few NSW Cup games and not coming back from a serious injury. So IMO he would have an even harder time for fitness this time around.
I think 3 or 4 games minimum in NSW Cup to get some fitness and confidence back. If he's killing it bring him back in via the bench.