Perhaps tougher to solve, Matthaus said the team must learn to communicate with each other.
Moreover, and perhaps toughest to manage, is the hunger to decide what gender means and the concomitant insistence that it must mean something.
The calendar will be cruel to all, but perhaps tougher on teams like the Knicks and the Nets, who are still adjusting to wholesale roster changes, with more possibly to come.
But a perhaps tougher struggle confronts Chinese film executives who dream of making movies that will be seen not just at home, but also by a measurable number of viewers in the United States and elsewhere.
He is perhaps toughest on his fellow Americans, concluding that the 2008 economic meltdown stemmed in large part from "people taking what they can, just because they can, without regard to the larger social consequences".
The other contributor, perhaps tougher to measure, is a development over the last decade: an increasing number of defense attorneys have become more skilled and resourceful in persuading jurors that the lives of their clients are worth saving.
But perhaps toughest of all has been confronting his own position on gay marriage when he looks in the green eyes of his daughter, who said two years ago that she is a lesbian.
Perhaps toughest of all, in a country where no good patch of land lies idle, is how to provide for those like Mr. Zhang and his family who will be moved.
Now it's time for the last and perhaps toughest installment of the series.
