Chang does not have options. My guess is that if everyone's healthy, Arroyo is on the bench, Valdez is in Worcester and Chang is DFA (and maybe slips through waivers so they can outright him). If Mondesi is back as well, I think the odd man out is actually Tapia. Then they carry Arroyo and Kike on the bench with Kike splitting time between the infield and outfield.Arroyo/Chang/Valdez is going to require some decision making. Then you need to factor in Mondasi, but honestly I'm not overly concerned with that decision. I think Mondasi makes Arroyo expendable, Chang gets sent down and perhaps there is room for Valdez on the bench. With the positional flexibility of Hernandez, Story, Mondesi there should some sort of workable rotation for there to be plenty of ABs to go around, give guys semi regular days off and in some respect strengthen the bench.
Fortunately, I doubt very much there's going to be a point where all of these guys (and let's not forget Duvall) will be healthy and available. And if they are, someone else will be banged up or slumping and things will sort themselves out.