Is this an unusual level of vacancies?

[DaFace]

Seems like there have been a TON of teams announcing coaches/GM's getting fired in the past couple days. Is this fairly usual at the end of the season, or is this year especially different in some way?

I don't recall there being so many people getting canned, but maybe it's just because we're looking that I'm noticing. Regardless, looks like there will be a lot of competition for the top "talent" this year. It'll be interesting to see Clark's approach to the whole thing.