ESPN's Jeff Legworld wants to ruin all of our friendships. Earlier this week, Legworld presented us with this question: Who would be a part of the all-time best starting lineup?Immediately you can see the problem. How does one parse through decades upon decades of historically great athletes? How could one possibly fairly compare players from the league's earlier years to those in today's NFL?And in case you were initially on the same page as Legworld and picked the same player (like Tom Brady) he did you favor and provided some suggestions to help get the arguments started (like Peyton Manning, John Elway, Joe Montana, and Johnny Unitas).