Illinois Constitutional Conundrum

Our state comptroller just had a stroke, and died, after being reelected. She was just finishing one term, and about to start another.

And we just elected a Republican governor, to replace our Democratic governor. But the new guy hasn't taken office yet.

In Illinois, the guv gets to appoint a replacement comptroller. But which guv gets to do that? Old or new?

Our new guy's position is that they should split the difference. The old guv can appoint someone to fill out the current term, and the new guv can appoint someone to fill out the next term.

What I want to know is: why on earth is our constitution vague on this point? Who wrote this thing?

When your constitution is murky on questions of this sort,
it just makes more work for your state supreme court.