The Fresno Bee has this story, in which Fresno County election officials make a case that election administration in that county, and likely other counties, is in jeopardy from lack of resources. The article, in the second half, mentions that Proposition 14 (the top-two system), passed by the voters in June 2010, makes the problem worse.
In early 2010, county elections officials had testified that Prop. 14 would make election administration considerably more expensive, but a State Court of Appeals ruled that this information could not be mentioned in the Voters Handbook. Instead, the Voters Handbook carried a statement by a state official denying that Prop. 14 would increase the costs of election administration.