A month ago, Gov. Christie's senior staff members laid out the pros and cons of taking over New Jersey's worst-performing school district: Camden. Christie sat alone in his office afterward and came to two conclusions. First, "enough is enough." He had heard calls for a state takeover when he campaigned in 2009 in Camden; his education commissioner, Chris Cerf, had long advocated the move. "Enough waiting, enough excuses, enough of the blame game," Christie recalled thinking.