Sure there is stress and pressure at Bama. But to equate being a coordinator at Bama vs being the head dog in Austin is the difference between a hot tub bath and a crawfish boil.
Unfortunately when hiring a coach, part of the process is passing judgement. The people that hire or do not hire him will do so after they pass judgement on his abilities vs his potential draw backs.
In this instance-- if we look at other coaches with known substance abuse problems-- the list of them that have risen above it vs those that have not, is not impressive. Remember the multiple drunk videos of Sumlin? He's not working out well. What about Kiffin and his problems? Sure he looked good at Bama and has stayed quiet at Ole Miss thus far--- but it's been a loooooooooong road for him and he hasn't fully made amends yet. How about Mike Price? Or Bobby Petrino? All their issues cleared up for good?
I'm saying the risk, at this point, is still too significant to hire Sark. And while I do not judge HIM as a person, we all, including those hiring him, will be judging his character. Like it or not.