Damien Cox and Gord Stellick are both well-known within the hockey world, and both are intimately associated with the Leafs (Cox as one of the country's top 3 newspaper columnists based in Toronto, Stellick a former GM and current broadcaster). However, neither of these men are blatent "fans" of the team (unlike, for example, Don Cherry), so this book reads as impartial and balanced. In fact, while praising most of the players, the authors are downright critical of the management of the team. The overall thesis of the book is that the Leafs win in '67 caused the team's administration to remain buried in outdated managerial styles, when the game was fundamentally changing.
Basically, this book is more about the seismic shift in hockey that took place in the late '60s. Bobby Orr was revolutionising the position of defense, Alan Eagleson took up the union torch that Ted Lindsay failed to light, and the league doubled in size (which also caused teams to start looking to Europe for players). Against this backdrop, the Leafs were the last of the old-time teams. Management (and some players) was bitterly opposed to the union. In addition, corruption and nepotism surrounded the team, especially with regards to the junior system (the Rochester Americans farm team was more profitable than the Leafs, so that team was sometimes stacked at the expense of the Leafs). It is the conclusion that the Leafs management - especially Ballard, Stafford Smythe, and coach/GM Punch Imlach - destroyed the Leafs proud heritage through hubris and occasionally criminal activity, from which the team has yet to fully recover.
The book does, of course, cover the Stanley Cup playoffs for the '66-67 season on a game-by-game bases (the Leafs played 12 games in total), which act as chapter intermissions. The book jumps around in time and location, but generally each chapter focusses on some aspect of the Leafs or the hockey world in general. For example, there is a chapter on the family connections (the Conacher, Smythes, Imlachs, etc), one on the union, one on the defense corps. Certainly all the players on that team are given some space. The standard Leaf tidbits are also included - the story of Tim Horton's coffee/doughnut shop and his car-accident death, the story of Baun's overtime goal on a broken leg, etc. But most interesting are the lesser-known facts, e.g. how Bobby Orr was passed over by Imlach as an insignificant teenager.
However, all told, the book really just uses the Leafs team of '66-67 to describe the way the hockey world changed when expansion arrived. The book is better for it, and that is what makes it a valuable addition for any hockey fan, not just Leafs fans.