Sure you can, it's not like if the one gets hurt you can't move the other there. You can, but it doesn't make sense. Sure it does. You rest Soto's legs to keep him fresh. The downside is you deal with Blanco's bat(although over a couple games there's not a super difference between him and Cedeno), and if by some tragedy Blanco is hurt, you move Soto to catcher. Considering that Starting pitchers only hit about 2-3 times a game before being removed for pinch hitters, the risk is that in the unlikely occasion that Blanco gets hurt, you may have to deal with hitting with your pitcher a couple ABs. That's far from a terrible situation, especially considering one of our starters is OPSing nearly .900 while another leads the league in sacrifices, and definitely worth the benefit of keeping Soto from wearing down.