Whom do you propose be the one to make that selection? Hell the Cons can't even agree on a single leader much less coalesce behind one prior to having a ‘duke out’ during the primaries. JMO
To jump onto that bandwagon ... today's "conservatives" can't agree on a single leader, because we can't even agree on what "conservatism" means, much less how it should be implemented.
As the last ugly primary season demonstrated, "conservatism" has tended to mean "what I think, and anybody who disagrees with me is a RINO bastard."
And in the fantasy world of modern Republican politics, the name "Reagan" is used like a magic word -- candidates seek to identify themselves with Reagan. Not that their ideas actually match what Reagans were, but because Reagan was the last Republican giant. His ideas are irrelevant to the candidates, just so long as they can foster an impression of being "Reaganesque."
To be blunt, modern conservatism has lost its intellectual bearings. We're a "movement" only in the Brownian sense of the word: randomly adopting positions under the influence of what seems to offer political advantage at the moment.