Pre-2011:
Michael Loyd Jr
Matt Carlino
Austin Nelson???

2011:
Ian Harward - early departure
Isaac Nielsen - early departure
Demarcus Harrison - early departure though somewhat understandable given the whole mission issue
Nate Austin - completed his eligibility at BYU

2012:
Cory Calvert - early departure
Jordan Chatman - early departure though somewhat understandable given academic stipulations (or was that just a facade?)
Augustin Ambrosino - early departure
Raul Delgado - early departure
Cooper Ainge - early departure although a walkon

2013:
Luke Worthington - many think won't have his scholie renewed
Jakob Hartsock - early departure
Eric Mika - early departure... in a different way. Even if he comes back one more year, that is all it will be
Braden Shaw - still on team at present
Nick Emery - still on team at present
Frank BartleyIV - early departure

2014:
Payton Dastrup - still on team at present
Ryan Andrus - still on team at present
Jake Toolson - early departure, could have been really helpful
Dalton Nixon - still on team at present
TJ Haws - still on team at present

2015:
Zac Seljaas - still on team at present
Alan Hamson - he ever really show up?

2016:
Yoeli Childs - still on team at present
Connor Harding - yet to show up
Gavin Baxter - yet to show up

ALOT of early departures there. Most of which were scholie players. A string of years there where there was nearly a 100% flame out rate.