Lots of players out there, guys don’t need to bring their own to still bring in really good players.
I know Mendoza is a stud, and was seen as a round 1/2 prospect all summer, but he wasn’t all-ACC last year and I’d bet 98% of the board never heard of him until this Fall. Their, Indiana’s, Center was a really good player at ND and started in the title game. There are a lot of guys out there, and for many, Penn State will offer the best playing time/visibility/income opportunity.
I believe a grand total of 1 player from a P4 school transferred that made 1st or 2nd all conference. The rest are guys moving up from small schools or backing up at P4 schools and they’re making impacts.