Getting on at CAL now is 110% about who you know. They have over 15,000 apps on file from what I've heard. Getting an interview there, regardless of time, is about somebody that works there going into the chief pilot's office and pushing to get you in. It's all, totally, completely about who you know. From what I gather, they are no longer taking anyone w/o multi-turbine PIC. The 'unofficial' min is 500 hours. They don't care what it's in (Citation or B-747), they just want PIC time. If you have that, then it's just simply about getting an internal push to get you an interview.
All this is secondhand knowledge, but this is what I understand how it's going now. Background doesn't matter, quals only matter a little bit. It's all about who you know.