The type doesn't need to be changed. A POI could "suggest" that his carrier do something be it procedural or in this case, splitting the 200 and 700/900. (No, I don't know if this is fact or not in PSA's case.) Nothing says that what the POI wants needs to be rooted in common sense.

Didn't Comair have their 200 drivers separate from the 700/900 guys?