A latching assembly for use in a well system is provided. The latching assembly can include an outer mandrel and a running tool coupling assembly coupled to a first longitudinal end of the outer mandrel. The running tool coupling assembly can be operable to couple to a running tool that includes a drill string component. The latching assembly can be controllable using the running tool. The latching assembly can also include a bearing coupling assembly coupled to a second longitudinal end of the outer mandrel that is opposite longitudinally with respect to the first longitudinal end. The bearing coupling assembly can be operable to couple to a bearing assembly. The latching assembly can further include a rotating control device (RCD) coupling assembly coupled to the side of the outer mandrel. The RCD coupling assembly can be operable to couple to an RCD positioned in the well system.