While nice in principal... that adds friction to your ability to be promoted. Usually someone promoted someone into a role to fill a specific need. If you need

While nice in principal... that adds friction to your ability to be promoted. Usually someone promoted someone into a role to fill a specific need. If you need x months before you can cut over, that decreases your ability to fill any but the longest term needs. If however you can leave almost at a “drop of a hat” because you have someone that can fill your spot, then the moment the org has a need you can fill, BAM you fill the need. Much lower friction.