Joslin was really good on the ground, and kept shifting positions. Koscheck tried to utilize some GnP, but Joslin was so slick, that he(Koscheck) couldn't really do much damage. Kos did execute some GnP though. Koscheck fought a dangerous opponent in Jeff Joslin, and fought the smartest fight he could.
Koscheck trains like it's going out of style, so poor training habits isn't the case.