I do this about once a year, but here goes
The following coaches who worked under Tressel at OSU appear to all be out of football at this point or at least currently not employed by any program
Mark Dantonio, Mark Snyder, Darrel Hazell, Jim Bollman, Doc Tressel, Nick Siciliano, Tim Beckman, Bill Conley, Jim Heacock, Ken Conatser, and of course Joe Daniels who passed away
The ones who have "better" jobs than they had at OSU
Luke Fickell - HC at UC
Mel Tucker - HC at MSU
Stan Drayton - AHC/RB/RGC for Texas (technically never coached a game with Tress as Tress resigned about 3 months after he was hired, but still technically part of a Tress staff)
Guys with roughly parallel jobs to their OSU job
Taver Johnson - DB coach for Las Vegas Raiders
Paul Haynes - CB coach U of Minnesota
Guys still coaching but at definitively lower jobs
John Peterson - TE/OT coach at YSU
Tim Spencer - WR at D3 Lake Forest College in suburban Chicago