Liu/ Nagy are going to be a work-in-progress for awhile. They have some exciting attributes, but Chels has to figure out the jump landings. Modifying to doubles in a pinch, does not cut it long term.
I can see improvement in her landings already, and I have faith they'll get better. She said in the article by Claire Cloutier that she and Balazs had learned several different throw jump techniques in their earlier years, and none of them match, but they're working on them. I love watching this work in progress.