As was mentioned in another post, just 24 hours before the accident Jim Tressel recognized the concerned safety of his camera people and moved his practice indoors. It's ultimately Kelly's responsibility to ensure the safety of everyone in his program.....players, coaches, and various personnel.
And claiming he's not a "tower expert" is just ridiculous. You don't need to be, it's just common sense. All you have to do is look at one of those things and realize that they may not be safe to use in a high wind environment. Nobody expects him to go out there everyday and measure the wind and determine that the scissors lift shouldn't be used because there are wind gusts of 26 mph or more. Just use some common sense and exercise caution.
I don't think he should be fired, but he should be held accountable as it happened under his watch.