Our Archdiosesan weekly included a sidebar explaining Titles used in the assignments. One title is both Latinate,
In solidum team.and a little Orwellian.
The pastoral care of a parish, or of a number of parishes together, can be entrusted to several priests jointly in what is called an in solidum team. One of the priests is to be the moderator of the pastoral care exercised by the team. This moderator is to direct their joint action and to be responsible for it to the bishop.