I'll start another PG rumor. LAC really is in interested in a Yi for Thornton deal. But LAC is asking for more ... possibly a trade of a wing player for Mo Williams. Then LAC uses the MLE to sign Charlie Bell.
Any deal involving Thornton or Mo would be held up due to the rule that you have to wait until 30 days after signing a player to trade him in a multi-player deal. That would be late August. So this is why LAC has appeared to do nothing: their hands are tied for 30 days.
But I'm in the "don't panic" camp. I'm looking forward to opening day whoever is on the roster (though I would prefer EB and Corey to match the jerseys I already own!).