It’s not enough to just be able to run, catch, and tackle, you have to be a credible threat as QB too. On top of all that, you have to be intelligent, able to assimilate the playbook from all those positions. TH sat in on multiple rooms to be able to do that. The chances of hitting on someone else able to do all that is not easy. We can’t even reliably hit on a player in a single position, much less multiple positions.