Behavior modification is a good tool to use in some situations. With new employees it works especially well, because it sets the expectations up front, rather than keeping employees guessing as to what behaviors you will accept in your workplace, and those you will not. Everyone needs boundaries, and this is no exception. Stopping long enough to modify behavior sets companies up for a better future than if they keep moving ahead without fixing the issues at hand.
There are some negatives to behavior modification, however. The main one that I see is the time that would have to be put in to modifying one’s behavior. Having more assessments up front to make the best possible decision in the hiring stage, rather than needing to modify many behaviors later on, is an immediate fix that works well. Sure, everyone has things they need to work on, but initially choosing people with less behaviors that need to be fixed helps everyone to move ahead faster, and will ultimately set your company up for success in the future.