It's another way to make your fullback a threat and Cam, more than anyone in the NFL, utilized the fullback to a great degree. As someone mentioned earlier it can also be effective around the goalline.
One of the reasons it's run to the shortside is that the defensive numbers are to the offenses advantage to the short side. It's also easier for most QBs to run it to the right if they are righthanded, although they certainly need to become adept to running it in either direction.
The other thing that the option does is with an athletic quarterback is it forces teams to play zone. If you want to play man against an elusive QB good luck as you'll be running down the field with a receiver when the QB is running up your rear end.
Remember, Cam is putting in a system for the long term, not just this season. Personnel changes.
This is Indiana running the option, of course they had one of the best option QBs in college football history: LINK
This post was edited on 4/10 at 9:52 am