We're always in 'build' mode. Right now, if the season opened tomorrow, then Duran is our DH, maybe. The OF would be RA, CR, and WA. FG projects Yoshida as a 111 wRC+. and Duran as 111. Duran marginal utility to the RS is very small. In fact, Vientos has a higher projected wRC+ than Duran.
In fact, I could make a pretty good case that Vientos backing up Mayer, Casas and Yoshida would add more value than Duran backing up our OF and Yoshida.