I try not to over react to early season record, the C's started like 16-2 like two seasons ago and ended up at 55 wins, which means they finished 39-25. Now of course injuries were a part of that. But thats the point, stuff happens. They're one 3 game losing streak away from drastically changing their projection.
That said I think this team has the talent and fit so that if injures are avoided high fifties are possible.