I believe this worrying about progression is pointless on a per workout basis for all but beginners.
You aren’t going to bench one day and rep out on a set, and add ten pounds the next workout for the same reps, the same week or even in the next week, unless you are a newer lifter. And if you can, you won’t do it consistently. That’s not how progression works.
I like the professors ideology. The only thing I’ve found different is I don’t even try to fit it into a week. I know I want to train certain body groups so many times in the period I train. That’s usually 8-9 days.
I usually need 2 rest days in that period,but
whatever recovers, that’s what gets trained.
Personally, the week is irrelevant for me, and so is the progression. I’ll lift for strength and change up my rep ranges or the exercise I’m putting first and going heaviest on if I plateau.
I’m not a huge dude, and to be completely honest have wasted much time dieting or focusing on things that weren’t necessary.
But I think the relevant point is, not to worry so much about the details, go to the gym, remember why you’re going, and do your job. I can’t imagine ever plateauing if you make that your priority every time you enter the weight room.
If you need to bring up a lagging bodypart more, or can get everything done in a week or less in your split, or even do great with a 3 day split, that’s great. But the point is individualization and learning what your body responds to.
Then you will consistently know what to do and have good progress, whatever your goals, and not just for bodybuilding