His issue, in essence, is that Nippert isn't very good and Holland is being shuttled between pen and rotation yet again.
As I mentioned this morning, I don't know that this is the way I'd handle it, but I don't really have a huge problem with it. The Rangers needed a spot starter, and Nippert was to the point where he was going to need to be activated. This gives them the opportunity to get a look at him for a few games and decide whether to keep him around or cut bait. And if Matt Harrison is back on August 1, he replaces Nippert if Nippert isn't going well.
Again, I don't know that I necessarily agree with this move, but I don't know that I necessarily disagree with it, either.