JetBlue schedules 1000 flights/day in our peak, but only 800 flights a day at our lowest point each year (using round numbers for sake of argument). If we staff for 1000 flights/day year round then we have bid divisors of 50-60hrs in the low points of the year. I don't know what the solution is, but it isn't as easy as not picking up RSAs and forcing the company to hire more people.
When September/October rolls around we'll all be twiddling our thumbs.