Will hospital adverse internists loose their critical care skills

In the waning years of my professional medical life I witnessed a trifurcation of internists into  three groups, the hospitalists and those who only saw patients in their office ( officists) with a third small group who soldiered on trying to do both, swimming against the strong economic tides.

It occurred to me that perhaps if a physician who trained to be able to care for complex, very sick patients in the hospital no longer did that type care that his critical care skills would atrophy. Further, since he now longer needed to know about the advances in the care of various types of very ill patient his incentive to keep up in those areas would decrease and the periodic testing for recertification would become even more of a contrived, farcical   exercise benefitting the ABIM.