I'm not saying I am happy with our extended depth at 2B and OF, but I don't see it as a priority right now. We can always pick up someone like Kinsler mid season, if needed.
"Finding out" about the health of Pedey and Nunez is nearly impossible. We'll know it when we see it. If both are hobbled, then yes, we need to add depth, but ST'ing should help us know more. We also have to know that at any moment, one or both could go down. I'm fine with Holt and Lin filling in until we trade for more depth.
If we keep Swihart around, somehow, we'll have some more depth. Chavis offers some 3B/1B depth, but his defense is suspect.
I think we built a pretty solid team with good depth and flexibility on the 25 man roster. Our AAA depth is not good, and we all know why, but it is what it is. I think DD is being smart by holding back on signing anyone and keeping enough budget space to make deals once we determine where the need is greatest.