Likely, the talented people left at that company would soon notice the new replacements are not very good, and (as a result) try to do more themselves. They would try to do too much, and make a mess of things. The job they used to focus all their attentions on, and do really well, would not have their full focus any more, because they would naturally be covering for the new guys, who are lesser than the guys who left. The company would be worse. And the people left, who did so well before, would appear to be not as good as they were only the year before.
Benning created a mess here.