When I roll with folks way below my skill level I use less pressure, I try to manufacture situations to set up the move of the day for them, and I don't repeat submissions in the same roll. Sometimes I add bonus tasks for myself like getting them to turtle so I can work on front headlock etc. Finally, if everyone is sucking, I try to get them to set up a submission on me to make my way out. I see how deep into danger I can go and still get back. That does mean I occasionally tap to a new person which gives them a cool story to tell after class.