Casey was doing enough to keep himself afloat. In other words, singing songs that are safe and he know he can do with ease. But doing this is means making himself uninteresting to the point of boring his audience because it means he's doing the same thing over and over again. He's currently trapped into that zone. Well, it finally caught up with him but it's not too late since he was not eliminated. His die-hard fans will still vote for him but casual fans will vote for someone else. He has to make some changes and surprise us in order for him to garner new fans. I guess his niche is bluesy pop but it gets tedious after a while especially if you keep singing basically mediocre songs that really are not meant to sing in a contest....simple arrangement, average melody, not enough range to make it vocally challenging...but only meant to be sung as a filler in a concert or when you're having a jam session with your buddies in a garage.