These guys are professional and they do this for a living knowing that each off-season is a roller coaster with ups and downs. Highly doubt that had anything to do with it. If anything, Durkin likely wanted to have a better audition to get a bigger role so he would have been extra motivated. The coaching business in college football is insane. People have a shorter and shorter attention span and want instant results. When coaches that average 10 wins (like Les) are under fire and Nebraska fires a guy who has won 9 games for 7 straight years, you know there is something wrong. You could be popular one day and then a complete dud the next. As a result, you have to take any opportunity given to you as it is presented to you. So yeah, personally I would have loved for him to wait another year but who knows, we could have had injuries to Lewis & Peppers next year and our defense could have been terrible and he would not even be in consideration for any coaching role.
I don't think Durkin was distracted. I think the lack of depth on the D-line and lack of any talent with our LBs caught up to us finally. We were not a team built for 60-minute fast-paced stamina nor are we a team that can stop speed. We will hopefully get there but we are not there yet.
I would also imagine that JH knew from Day 1 that Durkin was a flight risk so this move should not be a surprise to him at all. Infact, if we have an amazing year offensively next year it would not surprise me to see Drevno be considered for a HC role somewhere outside of the Power 5.