I don't see anything in that tweet from Kils about an immense workload change. It literally says "the ratio figures to change in Bibbs favor." That could mean a lot of things including a slight change to the current ratio but in Bibbs favor. Alex Gelhar is reading wayyyyy to much into that tweet, iit even looks a bit like the XKDC citogenesis comic:
https://xkcd.com/978/
I own Bibbs and not Booker in dynasty so I hope it happens, but basing it off that tweet alone, if that's what he did, is a huge reach.
He's basing it on a number of factors:
1. Booker with a pathetic 2.6 YPC over the last 2 games without CJA, followed by his 10 carry/22 yard clunker while Bibbs was showing better vision, power and burst in the same game.
2. The fact that with Booker in the backfield the Broncos were passing ~70% of the plays and Kubiak stated he would like that to return to closer to 50-50
3. Bibbs is clearly a favorite of the team after making Ronnie Hillman expendable in the preseason.
and most significantly:
4. Kubiak speaking at length about Bibbs earning more work & a larger role. Kubiak doesn't mince words - he came out and said Bibbs would be getting more work. Scroll up to the news link I posted with the Kubiak interview - some very juicy quotes.
It might not be this week (though it's likely) but Bibbs will be out-snapping Booker very soon.
And even if Booker doesn't lose a single carry, Bibbs could get 15 touches just with the Broncos gettin back to the balance they've said they want.
There's plenty of reason for Booker owners to panick, IMO - Bibbs looks like the real deal out there & Booker hasn't been doing anything with his opportunities. And since Semien isn't an awesome QB, the Broncos aren't comfortable featuring him as much as they'd need to with Booker'a woeful performance.
As I understand it, if a RB cant run 3x and get you a 1st down with his average yardage, he's a liability. Puts a lot more pressure on the QB.