Originally Posted by Excargodog

If you do not have enough CAs flying to generate enough SIC hours to get your FOs up to enough hours to upgrade themselves its more than just supply chain, it’s classic theory of constraints. No amount of shoving 0-121 time FOs in at the bottom will help if you are losing SIC experience hours to departing FOs and CAs faster than your remaining CAs can generate them. In fact, the more FOs you toss in at the bottom the fewer hours each will fly and the longer it will be before they can upgrade, allowing even more time for the majors to hire away your CAs and near-eligible FOs.