Maybe its both?
Staff guy 1: "Hey this scene needs to be redone, but we got all our guys tied up with the following scene, we won't make it on time!"
Staff guy 2: "I know, let's give it to our talented new guy, he's really fast!"
Staff guy 1: "No matter how fast he is, there's just not enough time to do it properly"
Staff guy 2: "We'll just tell him to do the best he can given the time, we'll give him plenty of time to do it properly for the DVD release!"
Or some such ... not really sure what I'm arguing here anymore