6) Kevin Talley
Previous achievements: Dying Fetus, Misery Index, Daath, Battlecross, Six Feet Under
Why he would work: Much like Yeung, Talley's drum style seems to fit right in with what Slipknot is looking for. Plus, he's a journeyman, hopping from project to project and is well-versed as a drummer.
Why he wouldn't work: Might be too pre-occupied with his own projects.
7) Roy Mayorga
Previous achievements: Stone Sour, Soulfly, Ozzy Osbourne
Why he would work: The easy choice, no? He already has experience with a few of the members in the band being in Stone Sour and probably gets along great with everybody.
Why he wouldn't work: Perhaps Slipknot would want somebody not already in Stone Sour to help keep the two brands separate.
8) Jordan Mancino
Previous achievements: As I Lay Dying
Why he would work: With his frontman currently awaiting trial, he's not exactly busy right now and is quite the competent drummer. The two bands already have a positive relationship, as the As I Lay Dying guitarists filled in for Jim Root on Mayhem Fest a few years back when he was sick.
Why he wouldn't work: Perhaps the band wouldn't want the negative publicity of associating with As I Lay Dying.
9) Shannon Lucas
Previous achievements: The Black Dahlia Murder, Battlecross, All That Remains, etc.
Why he would work: One of the best all-around drummers in metal and currently without a main project.
Why he wouldn't work: He left Black Dahlia Murder because he was over touring, so maybe he wouldn't be into the commitment.
10) David Silvera
Previous achievements: Korn
Why he would work: Slipknot came up just after Korn broke big and the two bands have shared many stages together. I'm sure they're friends and Silvera has expressed an interest in returning to drumming
Why he wouldn't work: He strikes me as having a different style than Joey and may not fit in with the band aesthetic.
So those are my guesses for possible replacement. My buddy Axl Rosenberg at MetalSucks came up with his own list. Did I miss somebody? Who do you think should take the reigns? Chime in below!