Not just one person from the travel party - from what I have seen, the below also helps
1. All members of the travel party should be standing right next to the carousel, so that all the bags arrive faster.
2. The luggage trolly must be parked touching the carousel, not that it is easier to trip and fall down
3. All members of the travel party need to point to bags at random to check it it's their bag and the travel party leader, flips the baggage tag on the bags to ensure that it's NOT theirs ... I mean, if you can't identify your bag .. I mean ...
4. Give your kids a trolley each so that they will leave you alone to concentrate on the bags, but the kids also bring their trolley to the carousel to collect *their* bags