According to Bruce Feldman of Fox Sports:

Mike Leach told @FoxSports he's promoted #TexasTech great Graham Harrell to #WSU's outside WR coach job. GH was as an off. analyst.

— Bruce Feldman (@BruceFeldmanCFB) February 12, 2015

Harrell played with the Packers from 2010 through 2012 and was part of team's Super Bowl XLV team. He enters just his second year on Washington State's coaching staff.