Worked out pretty poorly for Dave McNally and Andy Messerschmidt.
Point is, it won't go that long. The issue, if it ever came to that, would be taken care of in weeks, if not a couple of months, like it did in the 70's. Also, the reference to Clarett is weak. First of all, he simply didn't have the talent to compete in the the NFL, and they have the weakest union in pro sports. Imagine instead it was Reggie Bush. What do you think the end result would have been?
One again, I'm debating the point, not whether or not it will happen. I still believe, much to my chagrin, that he will sign on the final day, or more likely, the final few hours.