Mack Brown's Defensive Coordinators

I'm pretty sure I know how most of these generally rank out, but I'd like to get the UT fan opinion on Mack Brown's D-Coordinators.

How would you rank Carl Reese, Greg Robinson, Gene Chizik, and where you think Duane Akina will rank among them. My understanding is that Carl Reese inherited a bad defense and made it respectable, though I get the impression that UT fans aren't all that enamored of him. Obviously Chizik will get the most respect because he is the one with the Championship, though I'm interested to know who among the top is the least liked and why.

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