1. Lead tape on the heel
The added weight helps close the clubface during the swing.
2. More flexible shaft
Makes it easier to close the face at impact (though players with a quick transition form backswing to downswing may require stiffer shafts, not softer ones).
3. Shorter shaft
Forty-five inches is a lot of shaft. Going shorter can boost control, since you might hit the sweetspot more often.
4. Thinner grip
Lets your hands rotate more easily through impact--as long as you don't put a chokehold on the club in response.
5. Offset head
Designed specifically to fight slices--check out the Cleveland Sport OS, Cobra SZ 400 Offset and Tour Edge Bazooka OS. Many non-offset drivers use draw-biased weighting and/or closed faces for the same purpose.