Three of every ten jobs at the state’s troubled juvenile institutions are either vacant or have people on leave. The Milwaukee Journal Sentinel says 67 of the 313 posts at the Lincoln Hills boys’ school and Copper Lake girls’ school are open, including 21 that were just added when Governor Scott Walker signed the new state budget in September. Also, 26 current employees are out due to injuries or other reasons. The state’s largest news outlet says the remaining workers are frequently getting 16-hour shifts, sometimes with very little notice. Media reports have exposed numerous abuses of inmates by guards and vice versa while a federal probe is ending its third year. State officials say they’re doing their best to fill the vacant positions.