The system used to produce experienced pilots for the regionals. Most started out as flight instructors and then went on to some type of job flying twins in charter type operations. This was often very demanding flying. Usually at night and often single pilot IFR. In the last few years what management at the regionals has hired has shifted. Many airlines were highering 300 hour wonders who went through training academies. 10 years ago you would not get a look at most regionals without 1500 or more hours. When they speak of experience this is what they are talking about.