Slash...
Seriously??? Have you not ever heard of "Seniority"??? Maybe not....
You don't get the logic??? In the western world, Seniority rules everything. Like it or not, it is the answer to your lifestyle, roster (bids) etc. It's godly to the westerners... and is the reason one can simply move from a 320 to the 744 as it's the pilots prerogative... not the company's!!! Think about it: A pilot can actually request to move from the 320 to the 744 because he truly wants to fly that airplane at the base he desires for more money (bigger the airplane, bigger the pay check for the same seat). Nothing to do with the restrictions of the company.
Kap