Cousins was a similar under-the-radar late signing. Would you now say he was an impact player?
Again, I'm not the one making guarantees about Shepard's career. WT did that, in a negative sense (relative to Grandstaff, anyway). I just object to any poster claiming he knows what lies ahead for any young player, including Shepard. These pronouncements regarding what what a player will achieve (or not) are almost proffered by those who embrace recruiting rankings as if they are sacred texts delivered from on high.
Hornbeak played a lot more than him as a freshman though so Cousins being the late bloomer had very little impact as a freshman. I can't predict how well any player is going to turn out but Grandstaff is a solid player that was not going to lose minutes to Shepherd next year.
I think Shepherd will have a lot harder time finding minutes than Cousins ever did. I don't see him playing to much next year and if we land Young or another highly talented PG, you are looking at maybe 2 years of him not playing much.