Objective: how to quickly change plants in a flower bed

Which of the following solutions is more sound in terms of naive physics reasoning?

Choose from:
[i] use a pot-in-pot method. Plant a permanent pot in the ground, and drop in plants still in their nursery pots
[ii] use a pot-in-pot method. Plant a permanent pot in the ground, and drop in plants still in their nursery pallet containers
[i]