The Conservatives need a true fiscal conservative who nevertheless defines a positive role for government, and who contrasts sharply with Trudeau, whose lack of substance is wearing thin.. Of course he or she has to have some fluency in French. This leader has to be able to hold on to the rural and small town base, while appealing for different reasons to many urban voters, including immigrants.  Being able to get things done at the head of a minority government should also be a consideration.  I'm thinking...Michael Chong.