Not SPC but I'd say he's right around 10.
Tier 1) Saban, Dabo, Riley, Smart, Jimbo - Championship level coach and recruiter
Tier 2) Day (maybe tier 1), Kiffin, Fitzgerald, Brian Kelly (maybe tier 1), Harbaugh, Gundy, Chryst, Whittingham
Cristobal probably fits in that tier 2 category. Clearly behind Day, Kelly, & Fitzgerald IMO. Making him 9th at best. Harbaugh, Gundy, Chryst, & Whittingham have done it longer at a comparable level. I think a playoff appearance and another PAC12 title puts him firmly ahead of Harbaugh, Gundy, Chryst, Whittingham, & Kiffin - they're all relative to me right now.
Fitzgerald is the harder one to gauge because of where he's at but I think he's one of the best.