What if they don't view any blue chip prospects as being available at 7. Let's say 4 QBs go and Nabers/MHJ are off the board. Is Odunze a blue chip prospect? Maybe. I am not sure Alt falls into the blue chip category even though I have been on team LT for a while. So if you don't view Alt or Odunze as blue chip prospects, or in Alts case, view him as significantly better than the other LTs available, why not trade down, gain some draft capital, and take a prospect which in theory is similarly graded to who you would have taken at 7.