Indian casino
I know an Indian casino that has some dealers come in before the crowds and sit at closed tables while they open up, check and spread new decks of cards. Then the cards become a rubberbanded stack, with the empty boxes and put into a plastic bag that will be brought to some table when they switch cards.
A player could sit there at the table and watch the dealer do this but I have never seen one.
The cards in the plastic bag could be changed out but I do not think they do this based upon my past results there.
I think this is done this way because they do not want to kill time spreading cards on a live table. My problem with this procedure is it causes some to wonder if they are cheating and the fact that since it makes cheating easier that someone, someday just might do it.
Whenever a procedure creates doubt in the minds of players, someone with power should realize it and change it.