Justice League Vol. 4: The Grid

This volume of Justice League revolves around the idea of bringing new members onto the team after the Throne of Atlantis story-arc.  Firestorm, The Atom & Element Woman are the new members of the league & on their first official day they have to take on Despero.  Meanwhile the Bat Cave is robbed & Superman & Wonder Woman step around American politics to rescue hostages.  However this whole story leads to a larger story in Trinity War.  One thing I don't like about this collection is the way the Trinity War story line is broken up & collected with part one & part six in this book.  That means if this was the only Justice League family book I was reading I would know how the story kicked off & what the conclusion was but I wouldn't have the meat of the overall story.  DC Comics really needs to get their butt in gear when it comes to collecting older & current story arcs.