to change places (with); to be replaced (with, by); to be changed; to change (seats, shifts, etc.; with someone); to switch; to exchange
to change (to); to switch (to); to be replaced (by)
to be covertly swapped; to be replaced (e.g. with a counterfeit)
to alternate; to take turns
to change places; to relieve (one another)
to fall out and be replaced; to shed; to moult (molt)
to change (to); to switch (to); to be replaced (by)