Given time the livestock will adapt to the managment and the environment as long as it is consistent.
this is assuming you keep your own replacements and select the ones that are sucessful in the managment and the environment.
If the managment strategy is to go to the sale barn and reload every couple of years then expect the status quo or less.
to match genetic change to managment one first must have a clear understanding of their management and environment. they must understand the advantages and the limitations of the environment they create. what genetic factors are needed to enhance performance within the environment.
while flexibility is a key to surviving in livestock agriculture, one must not lose sight of the goals and strategies of how to achieve the goals. Consistency and time are what it takes to develop a functional herd of cattle.
Couldn't have said it any better.