"Draw the district lines based on natural geography and roads instead of narrowly-convoluted jigsaw puzzles."

Segregation by geography is an unlikely basis for compromise and rationality in politics. 

Districts should look like "jigsaw puzzles" in that that should be engineered for maximum balance and therefore competitiveness between political factions.

"Natural geography" is how we get non-competitive seats like those held by Lamborn or DeGette.