Redistricting: Keough Vs. Broadsword?

Idaho’s new legislative district plan, adopted unanimously today, would mean these incumbent senators would have to face off to remain in office, as they landed together in districts that have just one Senate seat:

District 1: Sens. Shawn Keough, R-Sandpoint, and Joyce Broadsword, R-Sagle
District 11: Sens. Patti Anne Lodge, R-Huston, and Melinda Smyser, R-Parma
District 16: Sens. John Andreason, R-Boise, and Les Bock, D-Boise
District 20: Sens. Shirley McKague, R-Meridian, and Chuck Winder, R-Boise
District 23: Sens. Bert Brackett, R-Rogerson, and Tim Corder, R-Mountain Home

• Follow Eye On Boise reports on the new redistricting map here .

Question: Is it a coincidence that only North Idaho battle involving incumbent senators would feature moderates Shawn Keough and Joyce Broadsword?