The arrangement I'm remembering was several different sizes of MOLLE pouches, with the lash points being for the bigger stuff like the ground pad and tent. The nonlinear idea being that one might need only the sleep system one night, (after grabbing dinner at a restaurant) pack the cooking gear last one morning, (having everything else packed before breakfast is done) or get only the sleeping bag liner out of the whole pile to stay with a WarmShowers host. Done right, there's no reason it would be any less secure than the assorted stuff that was commonly lashed to an ALICE pack before MOLLE and PALS came along.

Especially for overnighters and other short trips, I like to take a chair along, (the $15 WalMart knockoff of the $100 Helinox Chair One) which just doesn't get small enough to easily find space for in a pannier. Obviously if I'm not camping, it just goes on top of the rack, but if I am camping, the hammock and tarps are usually already there. It would be a pretty simple matter to add PALS loops to the case it comes with, or maybe find an existing case the right size already equipped, (I'd have to measure, but a couple of the dump pouches out there look like the right size) which also allows the chair to be directly accessible on a stop where I don't need anything else. The same goes for anything that might need to be the only thing pulled out on a given stop; tool roll, rain gear, etc.