Go back to the good old days of delegates chosen by state convention.
Yes.
^^
Agreed. Primaries have led to the selection of some quite terrible candidates. It's bad enough at the congressional level. But at the presidential level, you have some of the most able politicians not willing to put themselves through a two year campaign, appealing to two completely different electorates between the primaries and the general election.
Of course, primaries are more fun from the perspective of a political spectator.