He may prove naysayers such as I wrong but I can't see Scheer taking the CPC very far.  His performance as Speaker of the HoC was unimpressive (some would say tainted by partisanship) and the great centre swath of Canadian voters aren't interested in having social conservative values foisted on them.

There is also the question, touched on in the article, of whether Scheer can strike sufficient fear in the party to silence or at least mute the far right crowd, as Harper was able to do for the most part.

I just don't think that Scheer has sufficient heft to pull it off.