"I don't really know what this Google Wave is," says NBA commissioner David Stern. "But it sounds like some unholy combination of blogging, Facebook and Twitter. So, basically, the worst thing ever. I can't have our players communicating without a filter to the outside world. Banned." Google Wave, a cross-platform, web-based communication tool that is currently in beta testing, is the talk of the Internet — and the greatest fear of coaches and league executives. "To me Google Wave sounds like change," says Texas Tech head football coach Mike Leach. "And i fear change. At least any change that is not within the structure of the spread offense." But some others disagree. "I can't wait to get my hands on it," says USC head football coach Pete Carroll. "I don't know what the hell it is, but I bet it's pretty cool. If it's fun enough, I'll let my players screw around with it during games."