He's fat, he's slow, he's out a the clubs, he's lazy at practice, he misses team meetings, he can't sense pressure, he can't throw accurately, he fumbles constantly, he throws INTs constantly, he just plain sucks.
Personaly, i love watching him fail. its especially hilarious because the raiders did have jeff garcia, a qb who has done nothing but win his entire career, but cut him because they wanted jamarcus russel to play. Anyone who knows football saw that jamarcus has never had what it takes to paly in the NFL.