Yep. I looked it up not too long ago. From 2006-2015 we signed 85 3* players, 6 ended up good enough to get drafted. Two in the first two rounds. Almost half of our 5* players in the same time frame were drafted in the 1st two rounds. 3*s typically play like 3*s and 5*s typically play like 5*s.
That's not the full story.
ND has become SIGNIFICANTLY better at evaluating their talent since then.
2016: ND signed 12 3-stars (excluding Shannon, who's a LS). In that group you have:
Julian Love, Ade Ogundeji, Ian Book, Kevin Stepherson and Jalen Elliott all produced higher than their ranking indicated.
2017: ND signed 10 3-stars (excluding Doerer, who's a K).
JOK, MTA, Michael Young, Kurt Hinish and Drew White. Even though Young transferred, he's showing at Cincinnati, that he's going to have a career in the NFL.
2018: ND signed 13 3-stars.
Tommy Tremble, Ovie Oghoufo, Justin Ademilola, TaRiq Bracy, Paul Moala and C'Bo.
2019: ND signed 6 3-stars
We've already seen higher than 3-star play from Kiser and Liufau. Hart is also in the 2-deep at corner.
ND has signed 41 3-stars over the recruiting cycles of 2016-19.
18 of them have already outplayed their 3-star ranking, barring unfortunate circumstances with guys like Young or Stepherson, they still proved their talent ceiling was well beyond what they were graded as.
Make no mistake, ND is evaluating their talent A LOT better than they were in the early Kelly days and the pre-Kelly days.