Which disease is more manageable, coronary heart disease or congestive heart failure?

Serious and manageab: Congestive heart failure is often one of the compications of CAD. Both are serious conditions that can be managed with proper medications, diet, exercise and always addressing the root cause of the problem.

Part of continuum.: If both are present, then both must be treated. Coronary heart disease will lead to heart attacks, which cause or worsen CHF. CHF, if untreated, will lead to worsening of symptoms, more stress on the heart, and may well lead to heart attacks itself.