TDS is still a young kid has a long way to go and a lot of development to do in his game and physically (physically he has really come on this year), but he has not been brought through too soon. He is undertaking the perfect development path apprenticeship at the moment, learning form the best in the game atm and playing in short 20min bursts where he gets to develop his game (particularly in defence). It genuinely is the best opportunity for him but like a lot of these young kids, they dont want to develop they want it all now and is supposedly telling the club he wants 80mins.
Where it might be correct that he has been brought through too soon is that by him and his mate Lachie getting the big star bright light treatment so soon, they become impatient and want that top tier billing more quickly.
If Latu wasnt injured, Galvin wouldnt have got his debut last year.