Go ahead and name a player who transferred to Mullin as a result of a coaching change. "Log jam at a position" is a fancy way of saying a coaching staff doesn't think the player in question is better then the other players in-front of him at his position. Justin Simon didn't transfer because he didn't like the culture with Alonzo Trier and Sean Miller. He transferred because he only got 7.5 mins a game as a freshman and then was over recruited with Rawle coming in. Same with Tariq, Seede, Eli Wright. The post you quoted was in response to someone disagreeing with my notion that Mullin has done a subpar job recruiting because many of the transfer kids were highly rated coming out of hs. I don't believe transfers have as much potential as a hs kid. I would be more excited to have Luther Muhammad ranked 79 in his class then Eli Wright ranked 80 in his class because it was determined Eli didn't deserve pt as a freshman.
So a few things.
1. Every transfer is for different reasons. No one can blanket say it's because of playing time nor is playing time an indication of skill. There are system, style, role, and usage that all factor.
2. Potential of HS vs Transfer- Again this is a case by case basis. You could arguably say that production of transfers might be greater due to a year of strength & conditioning and practice. I for one would have loved Luther Muhammed but I don't think Eli Wright was a direct substitute for him. I think it's fairer to say that Greg Williams is and I also think highly of him too.
3. Fantasy vs Reality- St. John's isn't or wasn't getting Justin Simon out of high school nor Mustapha Heron nor Sedee Keita. However they are on the roster now for multiple years. So who cares about their path here?
4. Scholarship balance. We finally have a plan and path to not recruiting a whole new team every 4 years like it's been for nearly the past decade. This is incredibly important to longevity.