真的到了初级工程师追赶进度然后超出高级工程师的成本的时候，再回过头来使项目回到正规可能就太晚了。

By the time the junior engineers catch up and then exceed the costs of the seniors, it may be too late to get the project back on track.

youdao

让我们假设工程以高级工程师的劳动成本来评估(也就是高成本)，但是实际上工作是由更多初级工程师来执行的(也就是低成本)。

Let's say the project was estimated based on the labor of senior engineers (i.e., expensive), but the work is actually being performed by more junior-level engineers (i.e., at a lower cost).

youdao