I'd think the bench is Mills, Manu, KA, Bertans, Lee. Dedmon and Simmons are between the 11th-12th and matchup dependent when everyone is healthy. So if Pop didn't want to alter rotations much (specially to leave the main bench crew the 6th-10th time together on the court to gel), he'd just play Simmons less minutes but make some of those the Danny minutes. I am not sure how to work it out, maybe start him 5 minutes in the 1st and 3rd Q for example, give the rest of the minutes to Anderson.
OTOH, I am unsure if Pop will do that, bc he has preferred to start Anderson in the past when Kiwi has been injured, and from what I have seen Anderson has swapped spots with Kiwi for practices, so he probably has the better chemistry with the starters and that might be what Pop does. It's hard to tell. I'd just want Anderson to get playing time with the bench somewhere in there, so that when Danny gets back to the rotation, the bench is gelling and doesn't have a change in characters.
In reality, it's hard to say how everything goes. A lot depends on Simmons play.