The Reversal

I got my beautiful limited edition bySCV Publications in early september and it has been killing me waiting for Orion to release the UK Hardcover this month. I bought it from Waterstones and it was a nice bonus ( even if somewhat redundant under the circumstances) to find it was signed and with extra material. But ultimately I was disappointed. How come?
First let me say that a poor book by Michael Connelly is better than most author's best. But this is a poor Connelly effort and no mistake. Some time ago Connelly revealed he had been writing a Bosch-Haller double header which he put to one side when the idea for The Scarecrow came into his head. This feels like a book he may have put to one side. The story centres mostly on Haller and his decision to switch from defence to prosecution (the reversal of the title) in order to make sure a convicted child killer, who had recently won his appeal, stays behind bars. Bosch has a bit part as Haller's investigator.
Part of my difficulty with the book was that I felt Haller never really shares Bosch's urgency in putting the perp away and as a result we don't feel that urgency. Result- no tension. Not good for a thriller.The author gives us lots of information about the way lawyers work the trial system to get their favoured result but I just didn't find this interesting.
The Scarecrow was everything this book wasn't and it's certainly easy to see why Connelly put The Reversal aside to complete it. It is a high watermark in his stand-alone books, perhaps in all his work. But, with The Reversal and the equally disappointing Nine Dragons, he is batting nought for two.