How should I change my swing now that I switched to irons with a greater offset?

I just switched from old blade irons with very little offset to cavity back oversize irons with greater offset (Taylor Made RAC OS). Do I have to change my set up or swing to account for this offset change? I seem to have more of a slice now with the offset irons, and I'm not really good enough to determine why.|||I just went the other way!! I had a set of Callaway Fusions which are game improvement irons with maximum offset and I just switched to a set of Titleist 690.MB's with hardly any offset - my first question to you would be this - why did you decide to go with greater offset? your swing has been for the blades and now you are going to have to come through the impact zone "late" to counter act the "early" offset - if you are going to stick with these irons, you may want to play the ball back in your stance about a ball or two so your offset can come through square - if possible, get a newer set of blades - good luck|||off set irons are supposed to correct a slice. Set the club up properly behind the ball and the shaft will put your hands in the right position.|||The point is you shouldn't have to, the clubs are supposed to fit your swing. If you turn it around you'll be chasing your tail.