Is A Flagger Job Suitable For A Person Who Had Hand Cut Off In An Accident And Then Put Back After Surgery?

Question : Hi, my spouse had a very bad work injury last march 15, 2012. He was working for a Shake and Shingle saw mill, and was using a machine called a cuber (which is a big blade, axe) and he cut his hand off in this injury. So he was sent to a hospital where he under went a 14 1/2 hour surgery to put his hand back together. The surgery was a success and has been on wcb since the accident. Now they are trying to get him back into the work field because he hit a plateau in his healing, he is now doing some tutoring to become a flagger, we are uncertain if he will even be able to do all the tasks that are required for this position. We know with most certainty he will never return to more physical jobs or his last job. I am just wondering your incite on this. So, I guess my question is, do you feel it is a good job to get into or should he get a note from our local physician to tell wcb that this isnt something he will be able to go forward with. OUr biggest fear is that he will fail and then just shut himself right up. They choose this job because he is limited to what he can do with a very low level of education