The West Indies have a fantastic amount of raw potential and could really do well. I'm not saying they'll be world beaters but they could vastly improve on their current ranking position.
Despite having a 4 pronged seam attack, all the bowlers are different, even the fasties. Taylor has a very front-on action, high arm, steep bounce, good pace. Darren Powell traps the ball back at you, always following you. Fidel has a freakish action that's hard to pick with skiddy bounce. Sammy has good accuracy and line and length consistency at a lesser pace.
If they could get some consistancy in their batting they'd become a very handy side.