I would spread the early primaries around to different regions of the country in a manner much better than it's done today.
I would also do what I could to ensure that actual republicans picked our presidential candidate!
He asked what you would do to improve the system, and you responded "make it better".
That's not very specific, nor is spreading "the early primaries around" very specific.
How would you suggest that we went about ensuring that only "actual Republicans" voted in primaries. I can register as anything I want before a primary, then vote for whoever I want in a general election.
Here are the States that hold open primaries:
Alabama
Arizona (Semi-closed, with primaries open only to unaffiliated or unrepresented voters)
Arkansas
Georgia
Hawaii (Open primary for state, local, and congressional races; caucus system for presidential races.)
Massachusetts (All races' primaries open for "unenrolled"/unaffiliated voters only)
Michigan
Mississippi
Missouri
New Hampshire
North Carolina
North Dakota
South Carolina
Tennessee
Texas
Vermont
Virginia
Wisconsin
Where's the problem?