The Cavs only hope at this point is that the Celtics fall apart on the road, and lose confidence as a result. Not impossible, but highly unlikely. The media is going to make much of the fact that the Celtics have only won one road playoff game so far this season, but that really doesn't mean much right now. Not only because this young group is quickly maturing together through this process, but because as TH3-DOS3R pointed out, Cleveland doesn't play shit for defense most of the time, and that's not exactly a recipe for stripping a team of it's confidence. The Cavs don't communicate on D, they're out there rolling their eyes at each other, hell most of the time they don't even look to be giving any effort back there, and when you play like that you're simply not going to demoralize anybody.
People wanted to make far too much of the Raptors series. The Cavs weren't "back." They hadn't "figured it out." The "switch" wasn't flipped. They simply played a team who literally walk into an arena with Lebron like they just stepped into a real life horror movie. DeRozan probably needs to see a sport psychologist every off-season to exorcise the image of Lebron from his mind long enough that he can enjoy his vacation without having nightmares every day.
The way the regular season unfolded, and the Pacers series told you everything you need to know about the Cavs. Hell, the Pacers really had them by the balls and gave it away multiple times. Make no mistake....these Celtics are a lot better than the Pacers. Lebron should thank his lucky stars that Kyrie isn't playing, otherwise certain people would never let him hear the end of how Robin left Batman, and then spanked his ass.