Governor-deputy wars point to dysfunctional pre-election pacts

Why does it seem so hard for many governors and their deputies to get along throughout a single term? Is it the manner in which they find themselves together, so lost in trying to win that they do not give much thought to their prospective partner when they form government?

Strange that these are two individuals who not long ago happened to be favourite humans to one another, committed teammates and hunted together. While on the stump, they probably spent more time together than with anyone else crisscrossing their regions on the vote hunt. Perhaps, they constantly showed up in matching clothes like a love-struck couple, not skipping an opportunity to dance with the voters. In those times, the code was tight and attacking one of them meant facing the wrath of both of them because it was a team effort to deliver the ticket.