For now, all that is set is Brad Penny will start the series opener with Arizona on Thursday, followed by Brad Hand on Friday and Alvarez on Saturday.
Jarred Cosart could fall in line to start Sunday in the finale of the four-game series with the D-backs. But he has not officially been announced.
Once Alvarez comes off the DL, the team will have to make a decision, because it isn't planning on going with six starters.
Alvarez, on the DL retroactive to July 30 with right shoulder inflammation, threw a bullpen session on Wednesday.
"We've talked about getting guys an extra day, and I think it sort of sets up that way, where we can get each guy one extra day," Redmond said.
Joe Frisaro is a reporter for MLB.com. He writes a blog, called The Fish Pond. Follow him on Twitter