Craig was a good analogy. Here's how: people on a message board keep saying the suns just need to do this one obvious thing to fix all their problems (re-acquire Craig/Play Holiday). In both cases I thought the people saying these things were wrong because Holiday and Craig are both limited players. Obviously, I can't say that I was right about Holiday because he hasn't played, but the Craig example is instructive because of the similarities (which I guess you can't see).
Yes, it is good to look for alternative solutions. Not all change moves you in the right direction.
Yes, so far all other guards have sucked. Contrary to what you seem to think, Holiday could actually suck more. Years of evidence suggest that Shamet, Payne, Paul and Booker are all better players than Holiday.
Of course it could be worse. The Suns could have already been eliminated.