I agree that one more big would be nice, in terms of an actual big who can rebound, shot-block, and defend the post. I wouldn't spend the MLE on them though, either a minimum signing or trading for one would do the trick. It would need to be someone okay with spot minutes barring injury.
Generally those kinds of vet bigs have become quite cheap, so I think someone will be available.
Generally those kinds of vet bigs have become quite cheap, so I think someone will be available.