Not directly, no. The point in this case was understanding that the engineering culture had stagnated and needed to be refreshed. The people ordering the change in hiring clearly understood that it would take a long time for any newly introduced behaviors to percolate through the company. But without explicitly addressing the situation, things would just have gotten worse over time.

The reality was that in a fairly short time, focusing hiring on new grads actually had the intended effect of improving the way we did things. However, the company started becoming more unpleasant to work for soon after that. And a lot of those new hires, now with a couple years' experience, left. As did I, so I can't say how permanent the changes were.