The field needs to narrow considerably to: Bernier, Chong, Raitt, O'Toole, and Scheer.  Give them the space to air and debate their visions and ideas for the country, and give the electorate a chance to get to know them.  Concerns with Raitt and O'Toole (and Chong, to a lesser extent) would of course be their French, but personally I would be happy to give any of those five individuals my vote and my support.  

The remainder of the field are either unknown and have no chance, or dangerous to the CPC and country to varying levels of degree (Trost, Leitch, Blaney, Alexander).  They're also the ones that take up all of the air in the room and unfortunately are getting the (negative) media attention.  The CPC has to do better if it wants to compete in 2019 and beyond.