I think what's happening here is pretty straightforward.
In general, Mario takes a ****load of time interviewing and vetting candidates. That we know.
Here's the speculative part, which I think is true: Mario is basically done vetting and interviewing candidates for the coordinator positions. He's got a list of guys on both sides of the ball and he probably has them ranked in order of preference. He's now making offers.
On offense, Candle turned us down. So he's moving onto the next guy on his list. He'll offer the next guy on the list, and it'll take a few days to negotiate a contract. And the cycle will repeat until someone on his list accepts an offer.
Same process on defense. Offer. If someone turns us down, move down the list. Although there's less clarity here, he could still be in the interviewing/vetting phase.
So I'm hoping we'll know our coordinators by the end of this week/this weekend/early next week. If it takes longer than that, it means he's still vetting and interviewing candidates or he has to vet/interview more guys because the folks on his list turned us down.
Mario will probably give the coordinators some latitude/decision making power over some of the unfilled position coaches. So I expect those to fill after the coordinator hires.