I've been looking at all the different airline profiles on APC's home page (yeah, I do not exactly spend ALL my time on the forums

). There is use of terminology that is a bit confusing to a layperson. For example purposes, I will take the profile for Alaska and FedEx.
On the Alaska page, it has this:
Junior ANC capt hired: Dec 1998
Junior LAX capt hired: Sept 1998
Junior SEA capt hired Apr 1998
On the FedEx page, it has this:
Most junior captain hired: Feb 2005 (A300/HKG)
1) Why the persistent use of Junior Captain as a "benchmark?"
2) Does knowing the statistic for Senior Captain make any difference?
3) Why is there not a category of Junior FO?
4) Why does FedEx not have a listing of Junior Captain for the other domiciles?
5) If the Junior SEA Captain at Alaska was hired April, 1998, how would you describe all the warm bodies hired immediately after this fellow?
6) Following question 5, are these people all FOs?
7) Does it serve any useful purpose to breakdown the list of pilots into Captains and FOs, instead of giving a total?
8) In a furlough, are only FOs given the pink slip? Are captains ever furloughed?
9) If true that more FOs than captains are furloughed, would that not cause an imbalance in the number of crews? Surely, two people cannot sit on the left seat at the same time?