Most books on baseball are written by baseball journalists for a simple reason. They have the day-to-day relationships with the teams and players, and they write, so eventually a book falls out of them. But the real challenge is that most journalists are good at their specific format; the 500-to-3000-word article but the structure of a book is very different. Some excel, like Tom Verducci, adapting their long form approach to the new format. Others, like Jeff Blair, find it difficult...