Forrest Sherman as a transitional destroyer class

Was the Forrest Sherman class an unsuccessful attempt to replace World War II destroyers?

The class is interpreted as a transitional design, with its mixed 5-inch and 3-inch gun fit illustrating the point.

The class is presented as an example of a fleet in transition. Its initial armament mixed 5-inch and 3-inch guns with other developing systems. That interpretation challenges the question's assumption that it was simply an unsuccessful attempt to replace the wartime destroyers.