Really sorry to read about Jackson, by all accounts he was great.
I note that the article states "Beaty also will make a switch at defensive line coach", not "Slater is leaving for...". I may be reading too much into that phrasing, but it seems to infer a firing to me. Intriguing.
“The world is a dangerous place to live, not because of the people who are evil but because of the people who don’t do anything about it” ~Albert Einstein