Quarterly earnings not yet announced and the interim CFO leaves. What could this mean?

1.) He knows something we don't know and it ain't good...

or

2.) Knowing Mesa management's strong distrust of behaving ethically, they may have asked him to do something he felt ethically opposed to doing. So he got out. Good for him if this is the case.

Could also be a combination of the two, we'll just have to wait and see.