I think he is done with penalty in the Fall. There are some names out there that are good. Steve Prohm (Long term Contract), Buzz Williams, David Arseneault (Personal Favorite and his offense (The System) would fill Coleman every night!), Rob Jeter, Scott Sutton, Tim Cluess, Mark Few (Like him also!) and a few others. IMO, we will not get a "Major".
To me it really doesn't matter. All coaches pretty much know the same X's and O's, when to call timeouts, etc.... It's more in teaching, developing, and the willingness to change your "philosophy" when your philosophy isn't working. (Flexibility).
This was my point when someone brings up, "Well who are we gonna get to replace him?" We are not gonna get a major name such as Izzo or someone like that. I would take about any of the above mentioned over what we have now. I feel like the longer we let the degrading of the program continue the harder it will be for the next coach to turn it around.