I am not as high as you are on singleton. His defense was his strength and I can't say he's even a good defender right now. He needs to improve all aspects of his game to justify starting at SF. Vesely has been a surprise on defense, he commits a lot of dumb fouls but for a raw defender his potential is high. If he is able to get stronger he'll be a good glue guy, all hustle and effort, until he learn to shoot. Assuming he ever does.