Okay, here's the scenario....
You have a 4 man scramble, and a team of 4 guys.
After three holes, one of the team members develops a sharp pain in his back. The pain basically cripples him to where he pretty much can only putt, as a full golf swing is just too painful.
The question is:
If he's only able to putt, can someone else on the team take the other shots for the injured player?