The profit you will get out of these drills, I hope, is a development of kinesthetic sense, that awareness of where your body is in space and relative to other objects, like your opponent, and the mat and the out of bounds area.
I do a lot of drills like the one shown below. I stole this idea shamelessly from Sid Kelly.
Players lay at each end of the mat. Then they roll toward the center. When they get near each other they start matwork.
About half of the book, Winning on the Ground, is on transition. My belief is that "golden seconds" happen often in a match. Those are that second when your opponent is not quite ready to attack or defend, the second when you pounce.
Once they are set, it is too late. That's why it can be hard for jiu-jitsu players to switch to judo (that and the fact that the judo rules seem to change every third Thursday of the month). In jiu-jitsu, and grappling, you can stay on the mat for a long time. In judo, you just get a few seconds and they make you get up. So, how do you practice for that second of transition when 30 times as long is trying to get your technique on someone who is already on their guard?
Easy, you do lots of drills that just last a few seconds, where you practice that split second transition. Notice the drill above only lasts ten seconds.
I have a bunch more drills I'll upload all week. None of them are in the book. That's for our next book. I haven't talked Jim into that yet, so if you want to see another book, you better buy this one.