If you are not able to do this yourself, you can hire a geriatric care manager to check in personally with your aging parent on aregular basis between your visits.
Although I was on the road with the family, I was able to check in with the markets on aregular basis and was a little disturbed to hear the talking heads jawing about things suddenly looking not-too-hot and not-too-cold.
Encourage transparent feedback: One of the best ways to keep an organization and its leaders in check is to always encourage regular transparent feedback and build a culture where everyone has a voice, and more importantly feels compelled to use it.