Hard Sell would work for the wrestling book as well.

My opinion of this book is far lower than others have posted. 
Bigfoot vs Drakul fight offscreen (boo). 
The book felt like the first 45 minutes of Saving Private Ryan. (all action no story)
The familiar beats of Dresden learning and having a moment where he gets it just weren't there.
The fact that Christmas Eve needed to be included to provide any sense of closure or character evolution, is quite damning as a it relates to the structure of the novel.

The questions that remain unanswered are not very interesting or have been undermined. LTW has info for Harry but since he got tossed there is no reasonable way for Harry to get the info from the WC.  The argument the WC made is complete crap. (You have secrets therefore you are out and we are going to send family to kill you if you break our rules which we wont tell you.)
The writing feels uninspired in order set up something in the future.   

Can we add Kincaid as a possible for team soggy bottom.  He got fired by Ivy is employable by those with the $.  He is proficient in wet work and would be helpful as a sniper.   

I don't think Murph can take the Summer Knight mantle;  one of the prerequisites was a bond with someone close in the court of the faeries.  Murph doesn't have one.