Those rookie power ranking need to be adjusted for playing time or something.
Ingram is top 5 on nba.com, I think, but just look more closely - 54th out of 69 rookies this year in win shares
Jaylen at a reasonable 16th, especially given that shooting is not his strength.
For PER for rookies with at least 500 minutes:
Jaylen 7th, Ingram 15th