What bad luck? He hired Oronde, so whatever Oronde did to put us in trouble with the NCAA is not due to bad luck because Capel hired him. He wasn't told to hire Oronde or be fired.
The players that have quit were all his signings.
TMG and Tiny quit after 1 season, but the word on the street is Tiny was coming back until the allegations of improper recruiting or whatever hit the airwaves and he was afraid he'd be ruled ineligible. So, that comes back to Capel hiring Taliaferro so you can't say that was bad luck. I guess you could say TMG leaving for the NBA (what a joke) was bad luck, so I'll give you that one.
I believe he had some serious good luck to have the brother of the best player on the planet already on the team when he accepted the job. Had Taylor been recruited by OSU, Capel is probably out of a job in year 3, or after last year.
Griffin is what got him the extension and the big salary. That's good luck. I'd like to have that kind of luck.