Wow, exciting news for you both and all of us too! I have no doubt Sarah will be awesome. Rand, can we, the Moz Community, have a contest to come up with your new title? Some suggestions (which, no doubt, have probably already been tossed around):
Rand Fishkin, The Mozinator
Rand Fishkin, the artist formerly known as the CEO
Rand Fishkin, the Wonderful Wizard of Moz [that one’s my personal favorite]
…it’s got to be something super fun I think!